The Guardians selected Heuer's contract to the major-league roster Sunday and optioned him to Triple-A Columbus.

The 29-year-old righty joined Cleveland as a non-roster invitee in December and grabbed a place on the 40-man roster despite giving up eight runs with an 11:5 K:BB over eight innings during spring training. Heuer made three MLB appearances last season after being sidelined the previous four years due to injuries, and he'll likely need to pitch well for Columbus to get another look in the big leagues.

Kolek (oblique) threw a bullpen Saturday and could pitch in minor-league games next week, MLB.com reports.

Kolek is gradually building back up as he recovers from the Grade 1 left oblique strain he suffered Feb. 25, logging bullpen sessions Wednesday and Saturday. The right-hander is making progress, but it remains likely he opens the season on the injured list before reporting to Triple-A Omaha.

Crochet allowed six runs on six hits and two walks while striking out three over 5.1 innings in Saturday's spring start against Atlanta.

Crochet finished the Grapefruit League with an unsightly 7.36 ERA over 14.2 innings. Both the pitcher and Boston manager Alex Cora downplayed the spring results to Chris Cotillo of MassLive.com. Crochet attributed Saturday's line to missed locations and tinkering with a pitch mix he would normally avoid in a more competitive environment. The left-hander is set to pitch Opening Day on the road against the Reds.

De Los Santos (knee) struck out a batter and allowed one walk and no hits over a scoreless inning of relief Friday in the Astros' 7-4 loss to the Marlins in Grapefruit League play.

The reliever made his spring debut after completing his recovery from the right knee strain he suffered early in camp. Manager Joe Espada told Brian McTaggart of MLB.com that De Los Santos is scheduled to pitch again Monday in an exhibition against Triple-A Sugar Land. If all goes well in that outing, De Los Santos should be able to secure a spot in the Opening Day bullpen.

Texas manager Skip Schumaker said Saturday that Latz's chances of earning a roster spot will not be affected by the results of his final spring start, Kennedi Landry of MLB.com reports.

Latz allowed nine runs on eight hits and two walks over three innings in a Cactus League outing Thursday, inflating his spring ERA to 8.22. "You don't make or break a team or a position on the last day of spring, or last couple days of spring," Schumaker said of Latz. The Rangers' main concern is the southpaw's inability to maintain velocity deeper into games this spring, which could prevent him from providing at least five effective innings in a start. Latz's main competition for the final spot in the rotation is Kumar Rocker, who has excelled his last two times out but still has things the organization would like him to work on, such as his changeup usage. Non-roster veterans Austin Gomber and Cal Quantrill are also still in the mix.

Akin suffered an adductor injury while warming up in the bullpen during Baltimore's Grapefruit League game against the Phillies on Saturday, Jake Rill of MLB.com reports.

Manager Craig Albernaz said after the game that he doesn't know how severe Akin's injury is, but the skipper kept him out of the game as a precaution. More information on the 30-year-old's status for Opening Day should be available in the next couple days.

The Blue Jays optioned Estrada to Triple-A Buffalo on Saturday.

Estrada will finish the Grapefruit League with a 4.76 ERA and 1.32 WHIP through 11.1 innings. Those numbers are improvements from the 5.73 ERA and 1.45 WHIP he posted in 97.1 Triple-A frames last year, but the Blue Jays will send him back to the minors to continue developing.

Coulombe was sent home from Red Sox camp Saturday due to an illness, Chris Cotillo of MassLive.com reports.

The nature of Coulombe's illness isn't known, but assuming he's able to recover quickly, he should still be in good shape to make the Opening Day roster. The veteran reliever signed with the Red Sox a little over a week ago and made his Grapefruit League debut Thursday.

Kittredge (shoulder) said Saturday that he expects to begin a rehab assignment at Triple-A Norfolk once the regular season starts, Andy Kostka of TheBaltimoreBanner.com reports.

Kittredge has been working his way back from right shoulder inflammation since early March, and the Orioles have already confirmed that he will begin the year on the injured list. However, the right-hander has been encouraged by how his shoulder has responded to treatment and seems confident that he will only have to miss the first 15 days of the new season.

Orze looks set to win a spot in the Minnesota bullpen despite giving up five runs in 6.2 innings (6.75 ERA) this spring with an 8:6 K:BB, Dan Hayes of The Athletic reports.

Orze has struggled a bit this spring with his control but the Twins are in need of right-handed relievers. Orze looked good in his first extended run in the majors last season with Tampa Bay before his offseason trade to Minnesota, posting a 3.02 ERA, 1.37 WHIP and 40:19 K:BB over 41.2 innings across 33 appearances.