The Rangers placed Bradford (elbow) on the 15-day injured list Wednesday.

Bradford is still working his way back from an internal brace procedure he had last June. The left-hander is expected to be ready for a rehab assignment soon and is looking at a potential season debut around May 1.

The Astros placed Pearson (elbow) on the 15-day injured list Wednesday.

Pearson had to be shut down in early March after feeling soreness in his surgically repaired right elbow. It's not clear whether he's resumed throwing, and even if he has he's surely looking at longer than a minimum stay on the IL.

The Diamondbacks selected Ross's contract from Triple-A Reno on Wednesday.

Despite posting a 7.71 ERA, 1.57 WHIP and 6:5 K:BB over seven innings during spring training, Ross was able to secure a spot in Arizona's Opening Day bullpen. The right-hander is expected to operate as a multi-inning reliever/mop-up man for Arizona.

The Royals placed McArthur (elbow) on the 15-day injured list Wednesday.

McArthur had surgery last offseason to insert two screws into his right elbow to help stabilize a stress fracture and then had another procedure in July to remove the screws after they had caused an allergic reaction. The Royals are calling his injury elbow inflammation, and it's unclear when he might be ready for his season debut.

The Diamondbacks selected Loaisiga's contract from Triple-A Reno on Wednesday.

Loaisiga had been attending camp as a non-roster invitee but secured his place in Arizona's Opening Day bullpen after posting a 9:2 K:BB while permitting four earned runs and allowing nine hits over eight innings. He'll likely begin the season in a middle-relief role for Arizona but could quickly work his way into higher-leverage spots if he performs well early on.

The Giants placed Hentges (shoulder/knee) on the 15-day injured list Wednesday, Justice delos Santos of The San Jose Mercury News reports.

The left-hander is working his way back from surgeries on his left shoulder and right knee, and he's not ready for the start of the regular season. Hentges progressed to facing live batters late in spring training, so he could be ready for a rehab assignment in the near future.

Whitlock threw a perfect inning while striking out one batter in a 9-6 loss against Minnesota on Monday.

Whitlock appeared in four games this spring for Boston, allowing zero earned runs in four innings pitched. The right-hander also made four appearances for Team USA in the World Baseball Classic, allowing just one earned run in 3.1 innings. The 29-year-old posted a career-best 31 percent strikeout rate while putting up a 2.25 ERA for Boston in 2025. Whitlock will once again serve as a high-leverage arm for a Boston bullpen that still features Aroldis Chapman and Greg Weissert but a mix of unproven arms after that.

The Astros placed Wesneski (elbow) on the 15-day injured list Wednesday.

Wesneski still has lots of rehabbing to do following last May's Tommy John surgery. He could eventually shift to the 60-day IL when/if Houston needs the 40-man roster spot.

The Astros placed Walter (elbow) on the 60-day injured list.

Putting Walter on the 60-day IL gives Houston another 40-man roster spot to play with. The lefty will miss the entire 2026 campaign after having Tommy John surgery last September.

The Astros placed Santos (knee) on the 15-day injured list Wednesday.

Santos first injured his knee at the start of camp. He was able to return to make his spring training debut last week, but the reliever either had a setback or the Astros simply weren't convinced he was ready.