Mosqueda will not throw for a couple weeks due to left forearm inflammation, Kevin Gorman of TribLive.com reports.

Mosqueda experienced inflammation in his forearm after a live batting practice session, but exams did not reveal anything serious. He will be unable to participate for Team Venezuela in the World Baseball Classic, and a long shot bid to make the Opening Day roster is out the window.

Pirates senior director of sports medicine Todd Tomczyk said Monday that Harbin has been diagnosed with a lat injury and will be shut down from throwing for six weeks before being re-evaluated, Colin Beazley of the Pittsburgh Post-Gazette reports.

Harbin suffered an injury to his teres major muscle early in camp and won't have the chance to compete for a spot in the Pirates' Opening Day bullpen this spring. The Pirates added the 24-year-old right-hander to the 40-man roster over the winter after he turned in a 4.69 ERA, 1.59 WHIP and 92:46 K:BB in 63.1 innings between three minor-league levels in 2025. Expect Harbin to be optioned to minor-league camp in the coming weeks before opening the season on Triple-A Indianapolis' injured list.

Thompson (biceps) struck out two batters in a perfect inning Friday in the Rangers' 7-3 loss to the Royals in Cactus League play.

Thompson is attending Rangers camp as a non-roster invitee and appears to be fully healthy after missing the final week of the 2025 campaign when the Nationals placed him on the injured list due to right biceps tendinitis. The right-hander looks like a long shot to make the Rangers' Opening Day bullpen and will likely be assigned to Triple-A Round Rock before the end of camp.

Pearson (elbow) is still in a velocity ramp-up progression and might not be ready for Opening Day, Chandler Rome of The Athletic reports.

The Astros aren't sure whether Pearson will be able to appear in Grapefruit League games, pointing to a likely stint on the injured list to begin the season. Pearson will be stretched out as a starting pitcher, but he does not have minor-league options remaining, so his role once he's healthy could be dependent on the Astros' needs at the time.

Hader (biceps) could begin the season on the injured list, Chandler Rome of The Athletic reports.

The Astros have not ruled Hader out for Opening Day as he works his way back from left biceps inflammation. However, the closer is not included in the team's roster projection by Rome, who writes that it's "difficult to envision" the Astros rushing Hader back for the opener. Hader is currently limited to playing light catch on flat ground and it's unclear when he'll be allowed to throw off a mound again. If Hader does need to miss time, Bryan Abreu would assume the closer role for the Astros.

Fulmer agreed to a minor-league contract with the Pirates on Monday, Colin Beazley of the Pittsburgh Post-Gazette reports.

The deal includes an invitation to big-league spring training, which will give Fulmer the opportunity to compete for a spot in the Pirates' Opening Day bullpen. The 32-year-old righty didn't pitch after Aug. 23 last season after sustaining a right elbow strain, but with the offseason to recover, he should be at or near full health. Fulmer made 13 appearances out of the Angels bullpen prior to being shut down with the injury, turning in a 5.83 ERA and 1.23 WHIP across 29.1 innings.

Strzelecki recorded two strikeouts in a scoreless inning during Sunday's Cactus League game against the White Sox.

Strzelecki suffered a right elbow strain last season but has since put the injury behind him. The 31-year-old looked sharp in his first action of the spring, firing 11 of his 13 pitches for strikes. Strzelecki inked a minor-league deal with the Brewers earlier in February and will continue to compete for a bullpen spot as camp rolls on.

Brash said Sunday that he's been slowed down in spring training after having a tooth removed last week, Ryan Divish of The Seattle Times reports.

After spending a few days at home recovering from the procedure, Brash checked back in with the training staff Saturday and "looked to be very uncomfortable," per Divish. The issue doesn't sound like anything that could affect Brash's Opening Day availability, but his spring debut will be on hold until he's feeling better.

Soriano allowed four runs on three hits and two walks while striking out two batters over two-thirds of an inning in a Cactus League contest against the Dodgers on Saturday.

Soriano was tabbed to start the Angels' first game of the spring slate after ending last season on the injured list due to a right forearm contusion. The 27-year-old struggled against a Dodgers lineup that featured just a few of its anticipated starters, though all three of the hits he allowed were singles. Soriano is penciled into the Angels' rotation, so he'll look to shake off this outing and prepare for the regular season during the remainder of his spring appearances.

Samaniego didn't pitch as scheduled in Saturday's Grapefruit League game against the Twins due to back tightness, Tim Healey of The Boston Globe reports.

Manager Alex Cora said after the game that Samaniego's injury isn't too serious, and he should be able to get into a game within the next few days. The 27-year-old lefty posted a 3.08 ERA and 0.92 WHIP in 26.1 innings with the Pirates' Double-A affiliate last year before being shipped to Boston in the offseason. He will most likely report to Triple-A Worcester to begin the regular season and could be a candidate to debut in the big leagues at some point this year.