Lockridge (hip) is out of the lineup for Monday's game against the Red Sox.

Lockridge reportedly sustained a hip injury in Sunday's 8-5 win over the Royals, and though he'll be out of the lineup for the series opener in Boston, he could still be available off the bench. Blake Perkins will draw the start in left field Monday, and he and Lockridge are likely to share time at the position until the Brewers get Jackson Chourio (hand) back from the injured list.

The Astros optioned Whitcomb to Triple-A Sugar Land on Monday.

Whitcomb was up with the big club during its weekend series versus the Athletics while Isaac Paredes was away on the bereavement list. With Paredes returning to the active roster ahead of Monday's game in Colorado, Whitcomb will head back to Sugar Land.

The Astros activated De Los Santos (knee) from the 15-day injured list Monday.

De Los Santos got a late start to the season due to a right knee strain, but he's ready to go after making four scoreless rehab appearances. The right-hander will operate in a middle relief role for Houston.

The Astros activated Paredes (personal) from the bereavement list Monday.

Paredes was away for the weekend series against the Athletics but is back in time for the start of the Astros' three-game series in Colorado. He's out of the lineup Monday, and given the Astros' glut of infielders, Paredes faces an uncertain playing-time outlook. The 27-year-old is sporting a .227/.346/.409 batting line and 2:6 BB:K across his first 26 plate appearances this season.

Griffin will start at shortstop and bat eighth in Monday's game against the Padres.

After smacking an RBI double Friday in his first at-bat in the majors, Griffin proceeded to go 0-for-8 with two walks and a hit by pitch in his subsequent 11 plate appearances to close out the Pirates' weekend series versus the Orioles. The 19-year-old phenom isn't in any danger of losing the everyday shortstop job, but the Pirates will drop him a couple spots in the order Monday with hope of taking some pressure off of him.

Mangum is out of the lineup for Monday's game against the Padres.

The switch-hitting Mangum has cracked the starting nine in five of the Pirates' first 10 games, with three of those starts coming against left-handed pitching. Mangum should remain a regular presence in the lineup versus southpaws moving forward, but his opportunities to play against righties will likely be more sporadic while all of Bryan Reynolds, Oneil Cruz, Ryan O'Hearn and Marcell Ozuna are available to cover the outfield and designated-hitter spots.

Betts (oblique) said Monday that he already feels "light years ahead of where I thought I was going to be," Sonja Chen of MLB.com reports.

Betts tweaked his right oblique in Saturday's game against the Nationals and landed on the 10-day injured list Sunday. It's an injury type that usually necessitates longer than a minimum stay on the injury list, but Betts' encouraging update Monday suggest he could be back before the end of April. Hyeseong Kim is handling shortstop for the Dodgers on Monday and will continue to get reps at the position while Betts is out, with Miguel Rojas, Alex Freeland and Santiago Espinal also in the mix.

Andujar is out of the lineup for Monday's game against the Pirates.

Andujar went a collective 4-for-11 with a pair of extra-base hits, a walk and two runs while occupying the designated-hitter spot in each of the Padres' last three games, but he'll take a seat in the series opener in Pittsburgh. Though Nick Castellanos will serve as the team's DH on Monday, he's managed a lowly .485 OPS through 17 plate appearances this season and could cede more opportunities to Andujar if he's unable to get going at the dish.

Westburg (elbow) will begin a throwing progression this week, Jake Rill of MLB.com reports.

It's a major step for the infielder, but there remains no timetable for Westburg's return from a right UCL sprain. He is already on the 60-day injured list and thus not eligible for activation until late May. Coby Mayo has been filling in as the Orioles' third baseman and will continue to do so while Westburg is shelved.

Crawford is out of the lineup for Monday's game against the Rangers.

After making his return from the injured list Friday, Crawford proceeded to start at shortstop in all three of the Mariners' games against the Angels over the weekend while going 1-for-10 with a double, three walks and a run scored. At least until the Mariners are ready to promote top prospect Colt Emerson (foot) to the big leagues, Crawford should have a fairly firm hold on the everyday shortstop gig, though the veteran will get a breather as Seattle opens its series in Arlington. Leo Rivas will slide over to shortstop Monday after covering third base Saturday and Sunday while Brendan Donovan tended to a groin injury.