Miles Mastrobuoni

Fantasy News

• Mariners' Miles Mastrobuoni: Smacks grand slam in spring debut

  Rotowire Feb 22, 2026

  Mastrobuoni went 2-for-2 with a double and a grand slam in Saturday's Cactus League matchup with the Giants. It was a strong start to the spring for Mastrobuoni, who got the start in left field Saturday. He put the Mariners ahead early with his first-inning grand slam off Hayden Birdsong. Mastrobuoni, who hit just one home run while posting a .620 OPS in 175 plate appearances last season, has a shot to make Seattle's Opening Day roster as a bench option thanks to his positional versatility.

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• Mariners' Miles Mastrobuoni: Recalled, starting in finale

  Rotowire Sep 28, 2025

  The Mariners recalled Mastrobuoni from Triple-A Tacoma on Sunday. He'll start at first base and bat ninth in the team's regular-season finale versus the Dodgers. He'll see his first MLB action since Aug. 7 as the Mariners give Josh Naylor (groin) a breather. Mastrobuoni has a .612 OPS in the majors this season but put up a .296/.415/.417 slash line with one homer and nine steals in 31 games with Tacoma.

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• Mariners' Miles Mastrobuoni: Sent to Tacoma

  Rotowire Aug 15, 2025

  Seattle optioned Mastrobuoni to Triple-A Tacoma on Friday. Mastrobuoni will yield his spot n the 26-man roster to Luke Raley, who was activated off the injured list in a corresponding move. Mastrobuoni went hitless in two at-bats during his 16-day MLB stint.

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• Mariners' Miles Mastrobuoni: Optioned to make room for Naylor

  Rotowire Jul 25, 2025

  The Mariners optioned Mastrobuoni to Triple-A Tacoma on Friday. Mastrobuoni will lose his spot on the 26-man roster now that Josh Naylor (recently traded) has reported to the club. Mastrobuoni has slashed .252/.327/.293 with the Mariners and had recently been splitting time with Ben Williamson at third base.

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• Mariners' Miles Mastrobuoni: Continues to hit for average

  Rotowire Jul 20, 2025

  Mastrobuoni went 2-for-3 with a walk, a run scored and a stolen base in Sunday's 11-3 loss to Houston. The lefty-hitting Mastrobuoni continues to work in tandem with Ben Williamson for reps at third base, though the former has been functioning on the short side of the platoon for most of the year. While Mastrobuoni is batting a strong .314 (16-for-51) with four RBI, five walks and three steals over 26 games since the start of June, he has zero extra-base hits since May 23.

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• Mariners' Miles Mastrobuoni: Sitting Friday

  Rotowire Jun 13, 2025

  Mastrobuoni is not in the Mariners' starting lineup against the Guardians on Friday. Mastrobuoni has been out of the lineup in three of the Mariners' last four games, and his playing time could diminish further with Luke Raley (oblique) close to returning from the 10-day injured list. Randy Arozarena, Julio Rodriguez and Dominic Canzone will start in the outfield for Seattle.

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• Mariners' Miles Mastrobuoni: Notches steal in loss

  Rotowire Jun 8, 2025

  Mastrobuoni went 1-for-2 with a walk, one stolen base and one run scored in Saturday's 8-6 loss to the Angels. Mastrobuoni continues to fill a part-time role as a utility player. The 29-year-old's steal was his third of the season and his first since May 7 versus the Athletics. He's gone 4-for-8 across five games in June, but his inconsistent playing time limits any potential upside. For the year, he's slashing .243/.325/.301 with one home run, eight RBI, 13 runs scored and three doubles over 120 plate appearances.

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• Mariners' Miles Mastrobuoni: Retreating to bench Monday

  Rotowire May 19, 2025

  Mastrobuoni is out of the lineup for Monday's game against the White Sox. Mastrobuoni had started in each of the last four games at three different positions (second base, third base and right field), but he went just 1-for-11 with four strikeouts during that stretch. He'll be back on the bench Monday and should continue to serve as a utility player for Seattle, with his ability to play multiple outfield and infield spots enabling him to make a handful of starts per week.

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• Mariners' Miles Mastrobuoni: On bench against southpaw

  Rotowire Apr 30, 2025

  Mastrobuoni is out of the lineup for Wednesday's game against the Angels. With southpaw Tyler Anderson taking the hill for the Angels, the left-handed-hitting Mastrobuoni will take a seat after he started at four different positions (second base, third base, left field and right field) in Seattle's previous four games. Though he doesn't have a regular home in the infield or outfield, Mastrobuoni could continue to see fairly steady playing time against right-handed pitching while Dylan Moore (hip) and Luke Raley (oblique) are on the injured list and while Jorge Polanco (side) is limited to the designated-hitter role.

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• Mariners' Miles Mastrobuoni: Not starting against lefty

  Rotowire Apr 23, 2025

  Mastrobuoni is out of the lineup for Wednesday's game against the Red Sox. Mastrobuoni had started in each of the Mariners' last four matchups versus right-handed pitching, but he'll hit the bench Wednesday while the Red Sox send southpaw Sean Newcomb to the bump. The Mariners will likely continue to deploy Mastrobuoni in a timeshare at third base with Ben Williamson until Jorge Polanco is cleared to play the field again while he manages a side injury.

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• Mariners' Miles Mastrobuoni: Getting third straight start

  Rotowire Apr 13, 2025

  Mastrobuoni will start at third base and bat seventh in Sunday's game against the Rangers. Mastrobuoni will stick in the lineup for a fourth straight game and will make his third consecutive start at the hot corner while Jorge Polanco (side) is limited to DH duties. Polanco is believed to be at least one or two weeks away from being ready to play the field, so Mastrobuoni could continue to benefit from extra opportunities. The 29-year-old is hitting .316 through his first 10 games with the Mariners, but he hasn't provided much help in the counting categories (zero home runs, one stolen base, three runs and zero RBI).

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• Mariners' Miles Mastrobuoni: Drawing second start of season

  Rotowire Apr 9, 2025

  Mastrobuoni will start at second base and bat eighth in Wednesday's game against the Astros. Mastrobuoni will pick up his second start of the season, filling in at the keystone after the Mariners placed everyday second baseman Ryan Bliss (bicep) on the 10-day injured list. Though Bliss appears headed for an extended absence, Mastrobuoni won't necessarily be the Mariners' top choice to replace him. Dylan Moore will start at third base Wednesday, but he could shift over to second base and serve as the primary option at that position once Jorge Polanco (side) -- who is serving as a designated hitter against the Astros -- is cleared to return to the infield.

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• Mariners' Miles Mastrobuoni: Dealt to Seattle

  Rotowire Jan 14, 2025

  The Mariners acquired Mastrobuoni from the Cubs on Tuesday in exchange for cash considerations, Meghan Montemurro of the Chicago Tribune reports. Mastrobuoni had been designated for assignment but will now get to join a new 40-man roster. A .219/.279/.263 hitter across 272 career plate appearances in the majors, the utility player will compete for a reserve role this spring but does have minor-league options remaining.

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• Cubs' Miles Mastrobuoni: Loses 40-man spot

  Rotowire Jan 9, 2025

  The Cubs designated Mastrobuoni for assignment Thursday, Andy Martinez of Marquee Sports Network reports. The 29-year-old will end up as the Cubs' roster casualty following the acquisition of Matt Festa from Texas on Thursday. Mastrobuoni has slashed just .219/.279/.263 across 272 career plate appearances in the majors, and his .634 OPS at Triple-A Iowa last season could cause him to pass through waivers unclaimed.

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• Cubs' Miles Mastrobuoni: Optioned to Iowa

  Rotowire Jul 30, 2024

  The Cubs optioned Mastrobuoni to Triple-A Iowa on Tuesday, Meghan Montemurro of the Chicago Tribune reports. With Isaac Paredes now active and set to take over as Chicago's primary third baseman, Mastrobuoni no longer has a place in the Cubs' infield unit and will now head back to Triple-A. The 28-year-old slashed .260/.283/.300 in 53 plate appearances after being recalled in mid-June.

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• Cubs' Miles Mastrobuoni: Losing playing time

  Rotowire Jul 21, 2024

  Mastrobuoni is out of the lineup for Sunday's game against the Diamondbacks. Mastrobuoni started at third base in each of the Cubs' final five games before the All-Star break as well as Friday's 5-2 loss to Arizona, but he'll hit the bench for the second day in a row to close out the series with the Diamondbacks. The 28-year-old no longer looks slated to get regular playing time moving forward after the Cubs brought Mike Tauchman back from the injured list Friday.

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• Cubs' Miles Mastrobuoni: Drawing start at third base

  Rotowire Jul 5, 2024

  Mastrobuoni will start at third base and bat eighth in Friday's game against the Angels. Christopher Morel is getting a second straight day in the designated hitter spot, so Mastrobuoni will be tasked with handling the hot corner. It's his first start since he was recalled from Triple-A Iowa back on June 18.

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• Cubs' Miles Mastrobuoni: Back in big leagues

  Rotowire Jun 18, 2024

  Mastrobuoni was called up from Triple-A Iowa on Tuesday. Mastrobuoni will return to the major-league roster after being sent down May 20, replacing Mike Tauchman (groin) with the Cubs after Tauchman was placed on the 10-day injured list Tuesday. Mastrobuoni produced a .264 average with three home runs, 14 RBI, 16 runs scored and four stolen bases over 87 at-bats in 22 games with Iowa since his demotion.

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• Cubs' Miles Mastrobuoni: Tallies first three hits Saturday

  Rotowire May 12, 2024

  Mastrobuoni went 3-for-4 with a walk, a double, an RBI and two runs scored in Saturday's 10-9 loss to the Pirates. Mastrobuoni was productive from the No. 8 spot in the lineup and he recorded his first three hits of the season, as he came into the contest 0-for-14 across 10 games. The 28-year-old has bounced between Triple-A and the majors and serves in a utility role when he's with the Cubs, so he doesn't see a ton of regular playing time, which makes Saturday's performance an outlier.

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• Cubs' Miles Mastrobuoni: Called up from Triple-A

  Rotowire May 4, 2024

  The Cubs recalled Mastrobuoni from Triple-A Iowa on Saturday. Mastrobuoni made the Cubs' Opening Day roster and was optioned to Triple-A Iowa on April 18 after Patrick Wisdom returned from a stint on the 10-day injured list due to a back injury. Mastrobuoni has appeared in 10 games for Iowa, slashing .231/.318/.436 with 10 runs, five doubles, one home run and four RBI over 44 plate appearances. Matt Mervis was sent down to Triple-A Iowa in a corresponding move.

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