Rosenthal (shoulder) was slated to be evaluated by a doctor Monday, the Associated Press reports.

EDGE Analysis

The Athletics' projected closer remains in a holding pattern with respect to his regular-season debut as he continues to deal with shoulder inflammation. Manager Bob Melvin stated he expected to have more insight into Rosenthal's current progress shortly after the exam, so further word could be divulged at some point Tuesday.

Rosenthal (shoulder) has not had an MRI yet, and the team hopes that medication he has taken will resolve the injury, Alex Coffey of The Athletic reports.

EDGE Analysis

Rosenthal was originally placed on the injured list after struggling to throw on back-to-back days. His injury worsened after his last throwing session, at which point the team decided to sit him down. It takes six days for the medication Rosenthal received to become effective, so we should get some more clarity about his timeline next week.

Rosenthal is dealing with shoulder inflammation and will begin the season on the 10-day injured list, Matt Kawahara of the San Francisco Chronicle reports.

EDGE Analysis

Rosenthal missed time in March due to a groin strain, but an entirely different issue will send him to the injured list to open the year. It's certainly not the start the Athletics wanted from their prized offseason acquisition, who joined them on a one-year, $11 million deal in February. It's not yet clear how much time he's expected to miss. Jake Diekman, J.B. Wendelken and Lou Trivino could be among the top options for saves until he returns.

Rosenthal (groin) tossed an inning in relief in his Cactus League debut Wednesday against the Royals, giving up a run on two hits and a walk while striking out one.

EDGE Analysis

The results weren't particularly strong for Rosenthal in his first game of the spring, but the Athletics were likely just happy to see their projected closer back on the mound after he had been slowed by a minor groin strain shortly after reporting to camp. According to Matt Kawahara of the San Francisco Chronicle, Rosenthal pumped in 10 of his 20 pitches for strikes during the outing, tossing eight fastballs that sat in the 95-to-97 mile-per-hour range. He'll ideally iron things out in his final handful of appearances of the spring, but Rosenthal still shapes up as one of the top fantasy options among closers.

Rosenthal (groin) is expected to make a relief appearance in Wednesday's Cactus League game against the Royals, Martin Gallegos of MLB.com reports.

EDGE Analysis

Rosenthal's strained groin has apparently checked out fine since he resumed throwing off a mound last week, clearing the way for him to make his spring debut. After signing a one-year, $11 million deal in February coming off a 2020 campaign in which he accrued a 1.90 ERA, 0.85 WHIP and 38:8 K:BB in 23.2 innings, Rosenthal is expected to step in as the Athletics' new closer following the offseason departure of Liam Hendriks.

Rosenthal (groin) threw a successful bullpen session Sunday, Martin Gallegos of MLB.com reports.

EDGE Analysis

Rosenthal has been brought along slowly recently due to a minor groin strain, but he's now thrown successful bullpens twice in the last four days. The right-hander will rest again for two days but should make his next appearance in a Cactus League game.

Rosenthal (groin) threw a bullpen session Thursday and will throw to hitters Sunday, Martin Gallegos of MLB.com reports.

EDGE Analysis

Rosenthal has been dealing with a minor groin strain for the past few days, but he was only shut down from throwing very briefly. He appears to be back on track in his throwing program and should still have time to get up to speed by Opening Day, barring setbacks.

Rosenthal (groin) will resume throwing Tuesday and could be back on a mound by the end of the week, Martin Gallegos of MLB.com reports.

EDGE Analysis

Rosenthal had been shut down for two days, but his groin strain doesn't appear to be particularly worrisome. The fact that he's already throwing again bodes very well for his readiness for Opening Day, though the Athletics will likely remain cautious with him for now to avoid setbacks.

Rosenthal is dealing with a minor groin strain, Martin Gallegos of MLB.com reports.

EDGE Analysis

It's never good to see a pitcher battling an injury during camp, but at least this particular one isn't an arm problem and appears to be minor. Rosenthal hasn't thrown in the last two days and remains without a timetable to get back on the mound, but this could just be a case of the team being extra cautious with a prized offseason acquisition with Opening Day still more than three weeks away. If Rosenthal does wind up need a trip to the injured list, Jake Diekman and J.B. Wendelken could be next in line for saves, with Lou Trivino and Sergio Romo also potentially in the mix.

Rosenthal, whose one-year deal with the Athletics was officially announced Monday, was very impressive during his first bullpen session with the team Tuesday, Martin Gallegos of MLB.com reports.

EDGE Analysis

The flame-throwing veteran drew rave reviews for the session, showing off his trademark velocity on multiple occasions and leading manager Bob Melvin to jokingly remark he "thought" he saw the ball "a couple of times" while mostly just hearing it smack the catcher's glove. The strong start for Rosenthal is naturally highly encouraging for a player the Athletics plan to rely on as their full-time closer after allowing Liam Hendriks to walk this offseason. Rosenthal should have no competition for saves going into the season if Melvin's unequivocal endorsements are any indication, with Oakland's skipper labeling him "a true closer" and adding "with Trevor here now, we know that the ninth inning looks like."