The Dodgers placed Stone (shoulder) on the 15-day injured list Monday.

Stone experienced a setback with his surgically repaired right shoulder early in spring training and was shut down from throwing, though he's now considered pain-free and should start playing catch soon, per MLB.com. While recent imaging on Stone's shoulder revealed nothing more than inflammation, the Dodgers are expected to take a deliberate approach with the right-hander. The Dodgers are leaving the door open for Stone to return from the IL during the first half, though a more precise target date for his activation won't become clearer until he's ready to go on a minor-league rehab assignment.

The Dodgers placed Knack on the 15-day injured list Monday due to an intercostal strain, Fabian Ardaya of The Athletic reports.

Knack wasn't known to be dealing with an injury coming out of spring training, and it's unclear how long he might be sidelined to begin the season. He was roughed up for eight runs over 6.2 innings during Cactus League play, which had effectively took him out of the running for a spot on the Opening Day pitching staff. The Dodgers are dealing with multiple injuries in their rotation, so Knack could get some starts if his injury doesn't prove to be a long-term concern.

Williamson will start the fifth game of the regular season, March 31, against Pittsburgh, Rich Rovito of MLB.com reports.

Williamson was planned to be part of a three-pitcher grouping that would occupy the fourth and fifth rotation spots, but that plan changed. The Reds need to adjust to being without Nick Lodolo (blister), who will open the regular season on in the injured list. That paves the way for Williamson, Chase Burns and Rhett Lowder to each have their own spot in the rotation to begin the season.

Lowder is scheduled to start the Reds' third game of the season Sunday versus the Red Sox in Cincinnati, Rich Rovito of MLB.com reports.

The Reds adjusted their rotation plans with Nick Lodolo (finger) opening the season on the injured list. Lodolo had been scheduled to pitch Saturday, but he will be replaced by Brady Singer, while Lowder moves up a day to pitch in Singer's spot. Lowder made his final start of the spring Tuesday, tossing 50 pitches over three innings in an exhibition against Milwaukee.

Kelly (back) is scheduled to pitch in a simulated game on the back fields of extended spring training Saturday, Alex Weiner of ArizonaSports.com reports.

If all goes well Saturday, Kelly will then pitch rehab outings for Triple-A Reno on April 3 and April 8 in preparation to rejoin the Diamondbacks for his 2026 debut. He was able to throw 52 pitches and worked into the third inning in his final spring outing Monday and said he still has work to do in terms of timing and mechanics. The right-hander is expected to be placed on the 15-day injured list prior to the Diamondbacks' season opener Thursday in Los Angeles.

Lodolo (finger) will begin the regular season on the injured list, Gordon Wittenmyer of The Cincinnati Enquirer reports.

Lodolo began playing catch Tuesday -- his first time throwing since leaving his start Sunday with a finger blister -- but the Reds have officially concluded that the 28-year-old is better off beginning the season on the IL. The move will give him all the time he needs to recover fully; meanwhile, Brandon Williamson will step in to fill the void in Cincinnati's rotation.

The Giants optioned Seymour to Triple-A Sacramento on Tuesday, Shayna Rubin of the San Francisco Chronicle reports.

Although he finished the Cactus League with a strong 2.92 ERA and 1.05 WHIP over 12.1 innings, Seymour will come up short in the race for a spot in San Francisco's bullpen. The 27-year-old righty may reclaim a middle-relief role with the Giants if he continues to cruise on the mound to begin the Triple-A season.

The Giants optioned McDonald to Triple-A Sacramento on Tuesday, Shayna Rubin of the San Francisco Chronicle reports.

McDonald got off to a fast start this spring and looked to have a real chance at making the Giants' Opening Day bullpen as a long reliever. However, after finishing the Cactus League with a 6.94 ERA and 1.20 WHIP over 11.2 frames, he'll head to Sacramento to get back on track. The 25-year-old righty has looked good during his limited MLB opportunities (1.50 ERA, 0.89 WHIP through 18 IP), so the Giants may still be willing to add him to their rotation if injuries begin to arise among their starters.

Marquez hurled 4.2 innings in an exhibition start against Seattle on Monday, allowing one run on four hits and two walks while striking out eight batters.

Marquez actually worked as a reliever Monday, though he followed opener Kyle Hart after just one inning. Marquez logged a starter's workload with 81 pitches, and he racked up a whopping 22 whiffs -- 18 of which came on his knuckle curve. The veteran pitcher hasn't been a big strikeout guy in recent seasons, averaging less than a punchout per inning every year since 2019, but having Coors Field as your home park can have that kind of impact. Over his final two outings this spring, he's racked up 17 strikeouts across 9.2 frames. It remains to be seen if Marquez has rediscovered something in his arsenal or if he's just thriving in the atmosphere of exhibition games, but he seems to be headed for a role in San Diego's Opening Day rotation, and there's suddenly a reason to at least consider his name at the end of fantasy drafts in deep leagues.

Lodolo (finger) played light catch Tuesday with 15-to-20 throws, Gordon Wittenmyer of The Cincinnati Enquirer reports.

Lodolo -- who is recovering from a blister on his left index finger -- said afterward that things went OK, but the hurler "didn't sound particularly enthused," per Wittenmyer. The lefty is tentatively slated to make his season debut Saturday versus the Red Sox, but it's considered likely that Lodolo will either be pushed back or placed on the injured list. The Reds will make a decision on Lodolo's status soon.