Cardinals' Riley O'Brien: Shut down after forearm setback
Rotowire
O'Brien experienced renewed pain in his right forearm following his 20-pitch live batting practice session with Double-A Springfield on June 15 and underwent further testing and and consultation with Dr. Keith Meister, MLB.com reports.
Cardinals manager Oliver Marmol touched on O'Brien's status Saturday, noting that the right-hander's consultation with Dr. Meister isn't yet complete. A decision on O'Brien next step hasn't yet been decided, but surgery could be in the cards for the 29-year-old if Dr. Meister doesn't recommend rest and rehab as a treatment method. O'Brien won a spot in the Cardinals' Opening Day bullpen coming out of spring training but made just one appearance before landing on the injured list with a right flexor tendon strain.
O'Brien (forearm) will begin a rehab assignment Saturday at Double-A Springfield, John Denton of MLB.com reports.
O'Brien has been cleared for game action with Springfield after he threw live batting practice for the Cardinals' Double-A affiliate earlier this week. The right-hander has been on the shelf since March 31 with a forearm strain, so he'll presumably require multiple rehab outings in the minors before he's activated from the 60-day injured list.
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Cardinals' Riley O'Brien: Tossing live BP
Rotowire
O'Brien (forearm) will throw a live batting practice session Tuesday at Double-A Springfield, Daniel Guerrero of the St. Louis Post-Dispatch reports.
O'Brien will face live hitters for the first time since going on the injured list back in March. If the live session goes well, the 29-year-old could begin a rehab assignment later in the week.
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Cardinals' Riley O'Brien: Throwing off mound
Rotowire
O'Brien (forearm) is slated to throw another bullpen session Sunday, John Denton of MLB.com reports.
It's the second time he's thrown from the bump since he went down with a right flexor strain back in late March. O'Brien should be ready for a rehab assignment soon if he continues to progress.
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Cardinals' Riley O'Brien: Transferred to 60-day IL
Rotowire
O'Brien (forearm) was transferred from the 15-day injured list to the 60-day IL on Friday, John Denton of MLB.com reports.
O'Brien's transfer to the 60-day IL makes room on the 40-man roster for Kolton Ingram, who was acquired off waivers. O'Brien was close to starting his throwing program in mid-April, but no updates have been provided since. He'll be eligible for reinstatement May 30, though it seems far from definite that he'll be ready for immediate action.
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Cardinals' Riley O'Brien: Close to starting throwing program
Rotowire
O'Brien (forearm) will begin a throwing program this week, Katie Woo of The Athletic reports.
An MRI on O'Brien's right forearm showed no structural damage, but the team decided to shut him down for a few weeks regardless. It sounds like O'Brien is about ready to begin ramping up his throwing, and provided he avoids any setbacks, a return in mid-to-late May seems plausible. O'Brien has made single appearances in the majors each of the past three seasons, all for different teams (Reds, Mariners, Cardinals).
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Mariners' Riley O'Brien: DFA'd by Mariners
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O'Brien was designated for assignment by the Mariners on Friday.
O'Brien had a brief stint with the major-league club in early May but was sent down after spending just three days with the Mariners. He's posted a 2.70 ERA and 1.60 WHIP in 10 innings over 10 appearances at Triple-A Tacoma this year but will lose his spot on the 40-man roster as part of a move after Roenis Elias' contract was selected by the Mariners on Friday.
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Mariners' Riley O'Brien: Joins big-league club
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O'Brien was recalled from Triple-A Tacoma on Thursday, Daniel Kramer of MLB.com reports.
O'Brien was acquired from the Reds in mid-April and will now receive his first look in the big leagues with the Mariners. The right-hander has appeared for five games for Tacoma this season and hasn't allowed a run over 5.2 innings.
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Mariners' Riley O'Brien: Dealt to Mariners
Rotowire
O'Brien was traded from Cincinnati to Seattle in exchange for a player to be named later or cash considerations Saturday.
O'Brien was designated for assignment by Cincinnati on Wednesday in order to make room on the 40-man roster for Nick Lodolo. O'Brien pitched primarily out of the rotation for Triple-A Louisville in 2021, posting a 4.55 ERA with a 1.32 WHIP and 121:55 K:BB across 112.2 innings.
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Reds' Riley O'Brien: Called up ahead of start
Rotowire
O'Brien was recalled as expected Tuesday ahead of his scheduled start against the White Sox.
The 26-year-old hasn't stood out at the Triple-A level this season, with an 11.2 percent walk rate inflating his ERA to 4.55, but he'll be called on for his big-league debut nonetheless. Cionel Perez was optioned to clear a spot on the roster.
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Reds' Riley O'Brien: Sent to minors
Rotowire
O'Brien was optioned to Triple-A Louisville on Friday.
O'Brien's contract was selected in November but he's yet to make his big-league debut. He owns a strong 2.83 ERA in 232 minor-league innings but has yet to reach Triple-A, so he'll head there before making a serious push for a roster spot.
