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.

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

Blanco will be shelved until the second half as he continues his recovery from Tommy John surgery with an internal brace. He's a candidate to be shifted to the 60-day IL if/when the Astros need to free up a spot on their 40-man roster.

The Giants placed Sanmartin (hip) on the 60-day injured list Wednesday.

The southpaw will be sidelined until June after suffering a right hip flexor strain earlier this month. Even when healthy, Sanmartin is not a lock to return to the active roster with the big club.

Atlanta placed Hernandez on the 15-day injured list Wednesday due to a right shoulder sebaceous cyst.

Hernandez didn't pitch after Sept. 6 last season due to right shoulder inflammation, and the issue seems to have lingered into 2026. He didn't make any appearances in spring training, though he was seen throwing a live batting practice session at camp last week. Assuming he hasn't experienced any setbacks since he resumed facing hitters, Hernandez could be cleared to head out on a rehab assignment once the minor-league season gets underway this weekend.

Atlanta placed Young (elbow) on the 15-day injured list Wednesday.

Young is unlikely to be ready to make his season debut for Atlanta until later this summer while he works his way back from Tommy John surgery, which he underwent back in May. The southpaw reliever could be shifted to the 60-day IL at some point when Atlanta needs to open up another spot on the 40-man roster.

The Astros placed Sousa (oblique) on the 15-day injured list Wednesday.

Sousa will get a late start to the season after tweaking his oblique in mid-March. He collected a 2.84 ERA, 1.03 WHIP and 59:15 K:BB across 50.2 innings in 2025 and will fill a key relief role again for the Astros, once healthy.