Continuing past our Top 25 rookies to watch this spring, we outline the Top 100 prospects to watch. Lists such as this one have become more and more pertinent in recent years as teams are eschewing costly midseason trades in order to give chances to their lower-level farm hands. We also have links for separate lists in AL-only and NL-only Fantasy leagues.

We guarantee not all of these players will appear in the majors this season -- and we certainly left out some names who will surprise -- but use this list as a guide to help you find hidden gems in deeper long-term keeper leagues. We rank them based on their projected contributions in Fantasy this year only, taking the younger and raw prospects' talent and hype in consideration as well.

Note: All players on this list remain rookie eligible, according to official MLB rules, meaning they have less than 130 at-bats, 50 innings pitched or 45 days of service time in the major leagues.

CBSSports.com's preseason Top 100 prospects
Rk Player TM Age Pos 2007 high Destination
1 Evan Longoria TB 22 3B Triple-A Majors
Scouts from Arizona Fall League see him hitting 30 homers this year.
2 Clay Buchholz BOS 23 RHP Majors Majors
Curt Schilling's shoulder problem cuts a clear path for him in Red Sox rotation.
3 Jay Bruce CIN 20 OF Triple-A Triple-A
Might not start year in majors, but "next Larry Walker" will get a chance soon enough.
4 Joba Chamberlain NYY 22 RHP Majors Majors
We would rank him higher if we could be sure he won't merely be a setup man.
5 Jacoby Ellsbury BOS 24 OF Majors Majors
Might not be as good as we saw in September, but he is a 40-steal candidate if he starts.
6 Cameron Maybin FLA 20 OF Majors Majors
Initially will contribute in steals, but he is an elite talent with 40-40 potential long term.
7 Ian Kennedy NYY 23 RHP Majors Majors
His minor league numbers were even better than Phil Hughes or Chamberlain's last year.
8 Geovany Soto CHC 25 C Majors Majors
Triple-A MVP's numbers came out of nowhere, but they were so good you have to take notice.
9 Brandon Wood LAA 23 3B Majors Majors
Angels cleared shortstop spot to make room for him, if not on opening day then soon enough.
10 Andy LaRoche LAD 24 3B Majors Majors
Dodgers say he will enter spring on equal ground with Nomar Garciaparra for starting 3B job.
11 Joey Votto CIN 24 1B Majors Majors
Great OPS bat has wide-open shot in a great hitter's park, but he plays a competitive position.
12 Kosuke Fukudome CHC 30 OF Japan Majors
Import is a well-rounded outfielder the Cubs are paying a lot of money to produce.
13 Colby Rasmus CIN 21 OF Double-A Majors
Some in Cards organization believe he is capable of handling the huge jump from Double-A.
14 Daric Barton OAK 22 1B Majors Majors
A's say he will have first shot at starting 1B job over disappointing Dan Johnson this spring.
15 Franklin Morales COL 22 LHP Majors Majors
Stretch run was great, but he won't have a certain rotation spot like Ubaldo Jimenez does.
16 Homer Bailey CIN 21 RHP Majors Majors
Talent is as good as anyone's but has some significant development steps to take still.
17 Chase Headley SD 23 3B Majors Majors
Move to outfield should give him a great chance to open year in San Diego's starting lineup.
18 Carlos Gonzalez OAK 22 OF Triple-A Majors
He might not be ready to star, but the rebuilding A's might need him ready to start.
19 Ian Stewart COL 22 3B Majors Majors
If we were certain he can handle the defensive switch to second, he would be in the top 10.
20 Matt Antonelli SD 22 2B Double-A Triple-A
A year behind Headley, but we wouldn't doubt he could open the year in LF in San Diego.
21 Hiroki Kuroda LAD 33 RHP Japan Majors
Reports say he can throw mid-90s with outstanding command. He's old, but at least intriguing.
22 Steve Pearce PIT 24 1B/OF Majors Majors
His bat is ready, but he needs a position. The Pirates need to play guys like Pearce.
23 J.R. Towles HOU 24 C Majors Majors
Astros are ready to hand the position over full time to this future top-10 Fantasy catcher.
24 David Price TB 22 LHP College Double-A
2007 No. 1 overall pick might be getting a look to open pro career in majors ... wow!
25 Aaron Laffey CLE 22 LHP Majors Majors
Has potential to start for a top contender, but Cliff Lee and Jeremy Sowers are still around.
26 Gio Gonzalez OAK 22 LHP Double-A Majors
Minor league strikeout leader should have a great chance to start for rebuilding A's out of gate.
27 Clayton Kershaw LAD 20 LHP Double-A Double-A
Scouts are unanimous on his high ceiling, but he is just too young to consider for '08.
28 Adam Miller CLE 23 RHP Triple-A Triple-A
Elite prospect was throwing 100 MPH last spring but missed out on call-up due to elbow.
29 Jake McGee TB 21 LHP Double-A Double-A
Any other organization would have him as a No. 5 starter candidate. Rays will be patient.
30 Wade Davis TB 22 RHP Double-A Double-A
Four Rays among our top 30 prospects and Davis is the third pitcher. This is a serious system.
31 Shelley Duncan NYY 28 DH Majors Majors
Power is pretty obvious, but Baseball America doesn't think much of him.
32 Manny Parra MIL 25 LHP Majors Majors
If he wins a rotation spot out of spring training, move him into the top 25 rookies portion.
33 Carlos Carrasco PHI 21 RHP Double-A Triple-A
If he gets a chance to start for the Phils in '08, look out for some potentially huge dividends.
34 Wladimir Balentien SEA 23 OF Majors Majors
We give him a pretty good chance of making Mariners as a reserve outfielder.
35 Nick Adenhart LAA 21 RHP Double-A Triple-A
He will be just one call away from starting for one of the best teams in baseball.
36 Reid Brignac TB 22 SS Double-A Triple-A
Poor showing in Arizona Fall League forced Rays to trade for Jason Bartlett to start at SS.
37 Johnny Cueto CIN 22 RHP Triple-A Triple-A
It shouldn't take much for him to get a look. If he opens in rotation, he is a top-20 guy.
38 Andrew McCutchen PIT 21 OF Double-A Triple-A
Looks like another Lastings Milledge to us; can arrive soon but star later down the road.
39 Max Scherzer ARI 23 RHP Double-A Triple-A
'06 No. 1 pick had solid first pro season and has a good shot at ending in D-Backs' rotation.
40 Jordan Schafer ATL 21 OF High Class A Double-A
Not candidate to open year in CF for Atlanta, but we like his chances of finishing there.
41 Travis Snider TOR 20 OF Low Class A High Class A
Our first Class A player on this list, which means his ceiling is high but still far away.
42 Eric Hurley TEX 22 RHP Triple-A Triple-A
We like his chances of making his debut, but Texas' history with pitching prospects is poor.
43 Christopher Marrero WAS 20 1B High Class A High Class A
Age will keep him from making a huge impact this year, but he could rise quickly.
44 Jair Jurrjens ATL 22 RHP Majors Triple-A
If he winds up in Braves rotation to start the season, you should move him into the top 20.
45 Radhames Liz BAL 25 RHP Majors Triple-A
Hard thrower could use time in Triple-A to become a pitcher, but can O's afford that?
46 Troy Patton BAL 22 LHP Majors Majors
As a teenager was viewed as a potential Hall of Famer. Might be O's No. 5 starter.
47 Collin Balester WAS 21 RHP Triple-A Triple-A
It won't take much for the Nats' closest pitching prospect to earn rotation spot.
48 Jeff Clement SEA 24 C Majors Majors
Kenji Johjima's veteran presence on contender holds elite catching talent back ... for now.
49 Brandon Jones ATL 24 OF Majors Majors
Might start year as reserve with Braves, but he lacks real power or steals potential.
50 Jayson Nix COL 25 2B Triple-A Triple-A
Reports may have him ahead of Stewart for starting 2B job, but we obviously like Ian more.
51 Philip Humber MIN 25 RHP Majors Triple-A
Drafted among the elite, higher than all but Justin Verlander, in famed 2004 pitcher draft.
52 Kevin Mulvey MIN 22 RHP Triple-A Triple-A
Groundball pitcher who doesn't give up homers should outpitch his stuff in big leagues.
53 Jeff Niemann TB 25 RHP Triple-A Triple-A
Mountain of a pitcher should get a look before Rays more elite prospects in first half.
54 Luke Hochevar KC 24 RHP Majors Triple-A
Former No. 1 overall pick likely needs to dominate minors before he starts for Royals.
55 Taylor Teagarden TEX 24 C Double-A Triple-A
Awesome power at his position but Rangers are committed to Jarrod Saltalamacchia.
56 William Inman SD 21 RHP Double-A Double-A
Key piece in the Scott Linebrink to Brewers deal has struggled above Class A so far.
57 Brett Anderson OAK 20 LHP Low Class A High Class A
This might wind up being the best chip the A's got in the Dan Haren blockbuster.
58 Glen Perkins MIN 25 LHP Majors Triple-A
Starting last year in Twins' bullpen proved to set him back a year or two.
59 Nick Blackburn MIN 26 RHP Majors Triple-A
Lack of knockout stuff could hold him back to Triple-A, but he should get a look in '08.
60 Chris Volstad FLA 21 RHP Double-A Double-A
The rebuilding Marlins won't need to see much more of him before they call him up.
61 Chuck Lofgren CLE 22 LHP Triple-A Triple-A
Indians have too many options in front of Lofgren, but few of them have more talent.
62 Ross Detwiler WAS 22 LHP Majors High Class A
Sixth overall pick should be watched for potentially huge second-half dividends.
63 Matt LaPorta MIL 23 OF Low Class A Double-A
Seventh overall pick in '07 draft has great bat that won't need much seasoning in minors.
64 Sean Rodriguez LAA 22 SS Double-A Triple-A
If Angels' Wood falters, this power-hitting shortstop will be there to pick up pieces.
65 Joe Savery PHI 22 LHP Low Class A High Class A
Rice product shouldn't need much time in minors, so Phils may give him look late.
66 Gaby Hernandez FLA 21 RHP Double-A Triple-A
Another pitcher the rebuilding Marlins will give a look to far sooner than others would.
67 Greg Smith OAK 24 LHP Triple-A Triple-A
"Crafty" lefty should make a good deal of starts for an A's team searching for talent.
68 Garrett Olson BAL 24 LHP Majors Triple-A
Another lefty whose minor league numbers exceed his reported "stuff" and hype.
69 Justin Masterson BOS 22 RHP Double-A Triple-A
Red Sox might give him a look to be a Chamberlain-like setup man in second half.
70 German Duran TEX 23 2B Double-A Triple-A
Power at second base makes him a top-notch candidate to surprise in second half.
71 Chris Davis TEX 22 3B Double-A Double-A
Masher combined for 36 homers last season in minors and could get late look.
72 Humberto Sanchez NYY 24 RHP DNP -- injury High Class A
Won't be healthy for start of season after Tommy John surgery, but could surprise.
73 Neil Walker PIT 22 3B Triple-A Triple-A
His numbers would have played a lot better at catcher than at third base.
74 Michael Bowden BOS 21 RHP Double-A Double-A
He might have a better chance to reach majors elsewhere after midseason trade.
75 Desmond Jennings TB 21 OF Low Class A High Class A
Ability to get on base and potentially become a 50-SB threat make him intriguing in Roto.
76 Matt Harrison TEX 22 LHP Double-A Triple-A
Trade-deadline acquisition just has to prove healthy, but Texas will need him in '08.
77 Joe Mather STL 25 OF Triple-A Triple-A
Third-rounder from '01 has been in system a while, but peaked with 31 HRs last year.
78 Brent Lillibridge ATL 24 SS Triple-A Triple-A
Figures to be fall-back option if Yunel Escobar falters or gets injured in first full season.
79 Nolan Reimold BAL 24 OF Double-A Triple-A
Rebuilding O's will likely go to him before he's ready, but he looks solid long term.
80 Jed Lowrie BOS 23 SS Triple-A Triple-A
If Julio Lugo has another stinker, we could see powerful Stanford product take over.
81 Fernando Martinez NYM 19 OF Double-A Double-A
Injuries and being rushed up the Mets' chain have kept him from posting good numbers.
82 Austin Jackson NYY 21 OF Triple-A Double-A
One of the pieces the Yankees demanded hanging on to in Johan Santana trade talks.
83 Brett Sinkbiel FLA 23 RHP High Class A Double-A
First-round pick has to get over nagging injuries, but Marlins won't be afraid to advance him.
84 Bill Rowell BAL 19 3B Low Class A High Class A
Disappointing first full pro season has taken some of the luster off elite high school pick.
85 Matt Wieters BAL 21 C College High Class A
Until the catcher makes his official pro debut we can't consider him a true Fantasy target.
86 Chin-Lung Hu LAD 24 SS Majors Triple-A
Could develop into .300 hitter in majors and might be Rafael Furcal's successor.
87 Deolis Guerra MIN 18 RHP High Class A High Class A
Among the prospects in the Santana deal, he has the best chance to be great.
88 Daniel Cortes KC 21 RHP High Class A Double-A
Great first full season in Royals system has him moving up team's prospect radar.
89 Chris Coghlan FLA 22 2B High Class A Double-A
Power at second could help Marlins deal off much older Dan Uggla for more prospects.
90 Jose Tabata NYY 19 OF High Class A Double-A
We don't see it yet, but scouts love his high ceiling, so we will watch one more year.
91 Lars Anderson BOS 20 1B Low Class A High Class A
Baseball America is predicting some huge numbers this year for this slugger.
92 Jason Heyward ATL 18 OF Low Class A Low Class A
An outstanding debut has toolsy high school draftee high on Braves' prospect radar.
93 Mike Moustakas KC 19 SS Low Class A Low Class A
2007 first-rounder is too far from the majors to consider outside of keeper formats.
94 Josh Vitters CHC 18 3B Low Class A Low Class A
Another '07 first-rounder who could arrive quickly but won't impact Fantasy this year.
95 Elvis Andrus TEX 19 SS High Class A High Class A
Piece in Mark Teixeira deal has drawn Edgar Renteria comparisons, but is too far away.
96 Rick Porcello DET 19 RHP High school Low Class A
Slipped due to signability, but he needs to debut spectacularly to have any chance soon.
97 Angel Villalona SF 17 3B Low Class A Low Class A
Scouts and Baseball America love his high ceiling, so that's enough for us.
98 Tim Alderson SF 19 RHP Low Class A Low Class A
6-foot-7 prospect throws in low-90s but you should expect more power to come.
99 Jarrod Parker ARI 19 RHP High school Low Class A
Baseball America has compared him to Scott Kazmir and Tim Lincecum, wow!
100 Carlos Triunfel SEA 18 SS High Class A High Class A
Power hasn't developed and he is far too raw and far away to project for Fantasy yet.

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