MLB Player News

Mengden is scheduled to start Saturday against the Mariners, Jane Lee of MLB.com reports.

Mengden is set to enter the rotation in place of Brett Anderson, who was placed on the disabled list with a forearm strain Tuesday. The 25-year-old fired four scoreless innings in long relief during Monday's game, lining him up to start Saturday on normal rest. Mengden owns a 4.47 ERA across 16 major-league starts this season. Seeing as Anderson and Sean Manaea (shoulder) are both dealing with potentially long-term injuries, Mengden figures to stick in the rotation for multiple turns.

Manaea was diagnosed Tuesday with left rotator cuff tendinitis and is without a definitive timetable for a return, Jane Lee of MLB.com reports.

This is a tough blow for Manaea and the Athletics. The southpaw will be shut down from throwing until the discomfort in his shoulder subsides, after which he'll have to build back up to throwing off a mound again. While the A's are hoping Manaea will be able to pitch again this season, there's a possibility that won't happen. Frankie Montas will be recalled from Triple-A Nashville to take Manaea's turn in the rotation for the time being.

Manager Ron Gardenhire said Norris (groin) is a candidate to start for the Tigers against the Yankees on Saturday, Jason Beck of MLB.com reports.

Norris was originally expected to work out of the bullpen when he rejoined the Tigers, but it appears those plans have changed after he looked sharp in a rehab start for Triple-A Toledo over the weekend (allowing one run through four innings with four strikeouts). Even if he's passed over for Saturday's spot start, Gardenhire said Norris will likely get a start at some point in September, according to Jason Beck of MLB.com. Norris has been on the shelf since undergoing groin surgery near the end of April. The 25-year-old compiled a 5.87 ERA and 18:9 K:BB across five appearances (two starts) with the Tigers before getting hurt.

Armstrong had his contract selected from Triple-A Tacoma on Tuesday, Ryan Divish of The Seattle Times reports.

Armstrong compiled an impressive 1.77 ERA and 82:26 K:BB across 56 innings of relief with Triple-A Tacoma before earning a promotion. He spent time in the majors with the Indians each of the past three seasons, posting a solid 3.53 ERA across 43.1 innings. Nick Rumbelow was sent to the minors in a corresponding roster move.

Rumbelow was optioned to Double-A Arkansas on Tuesday, Ryan Divish of The Seattle Times reports.

Rumbelow made just one appearance during his most recent stint with the Mariners, allowing one run across three innings of relief against the Astros last week. He now owns an unremarkable 6.75 ERA across 13.1 big-league innings this season. The 26-year-old should be back in the majors when a fresh bullpen arm is needed.

Chapman received a second PRP injection in his left knee Tuesday, Bryan Hoch of MLB.com reports.

Manager Aaron Boone said this was part of the original plan after Chapman received the first injection last week. The Yankees still intend to re-evaluate him in a week or two, after which there will hopefully be a more concrete timetable for his return. Until then, Boone will mix and match between Dellin Betances, Zach Britton and David Robertson in the ninth inning.

Mengden fired four scoreless innings in a loss to the Astros on Monday, allowing four hits and two walks while recording two strikeouts.

The right-hander had just been summoned from Triple-A Nashville earlier in the day, with an eye on having him log a start Thursday in place of Sean Manaea (shoulder). However, the 64 pitches Mengden threw Monday likely scuttles that plan, Jane Lee of MLB.com reports, although the veteran is still a likely candidate to take Manaea's rotation spot should the latter be sidelined for a prolonged period of time.

Manaea (shoulder) will be evaluated by Dr. Neal ElAttrache on Tuesday, Susan Slusser of the San Francisco Chronicle reports.

Manaea landed on the disabled list Sunday with a left shoulder impingement, and after getting an MRI on Monday, he'll leave it to Dr. ElAttrache to determine the extent of the injury. The fact that Manaea is scheduled to see one of the top surgeons in pro sports is not good news, as it likely suggests that he's dealing with a serious injury. More news on Manaea's availability moving forward should emerge later this week.

Santos was designated for assignment by the Blue Jays on Monday, Shi Davidi of Sportsnet.ca reports.

Santos was dropped from the team's 40-man roster to free up a spot for Murphy Smith, whose contract was selected from Triple-A Buffalo in a corresponding roster move. The 27-year-old Santos compiled a solid 2.85 ERA across 41 innings with the Bisons this season, though his 7.20 ERA across 20 big-league innings likely rendered him expendable. He'll likely report back to Buffalo should he pass through waivers untouched.

Devenski (hamstring) will make a minor-league rehab appearance with Double-A Corpus Christi on Thursday, Jake Kaplan of The Athletic Houston reports.

Devenski, who has been on the DL since Aug. 3 with a hamstring issue, has already made five rehab appearances -- three with the Hooks and two with Triple-A Fresno -- struggling to a 7.71 ERA across 4.2 innings in those outings. He'll make one more appearance with Corpus Christi later in the week, and if everything goes off without a hitch he'll likely be cleared to rejoin the Astros on Saturday when rosters expand.