Injuries & Moves: Estes recalled; Lucas optioned

Injuries & Moves: Estes recalled; Lucas optioned

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May 11: RHP recalled from Triple-A; LHP optioned to Triple-A
Estes, ranked Oakland’s No. 11 prospect by MLB Pipeline, was recalled from Triple-A Las Vegas to start Saturday’s game for the A’s against the Mariners at T-Mobile Park. The 22-year-old right-hander posted a 6.04 ERA in six starts for the Aviators and is expected to fill the rotation spot of Joe Boyle, who remains sidelined with a lower back strain.

Lucas, who was recalled last week mostly to provide length out of the bullpen, returns to Las Vegas to clear a spot for Estes on the active roster.

May 8: Recalled C/1B from Triple-A Las Vegas; selected LHP from Las Vegas; added RHP from Las Vegas as 27th man; placed INF (left ankle injury) on 10-day IL; optioned LHP to Las Vegas; designated RHP for assignment
Hernaiz was forced out of Tuesday's game against the Rangers at the Coliseum after he landed awkwardly on the first-base bag while trying to beat out an infield hit. Soderstrom, ranked by MLB Pipeline as the top prospect in the A's system last season, hit .245 with seven homers, 19 RBIs and an .882 OPS in 27 games with Las Vegas.

Lucas has gone 2-0 with a 2.87 ERA and .699 opponent OPS in 11 games, including one start, with Las Vegas this year, while Bido is 4-1 with a 2.59 ERA in six games (five starts) with Las Vegas and was scheduled to start the second game of Wednesday's doubleheader.

May 8: 2B (oblique) to begin rehab assignment
After Gelof ran the bases and took part in pregame fielding drills before Wednesday’s doubleheader against the Rangers, manager Mark Kotsay revealed that the second baseman will join Triple-A Las Vegas on Friday to begin a rehab assignment at some point during the team’s series at Round Rock this weekend. Gelof has been out with a left oblique strain since April 24.

May 7: RHP selected from Triple-A Las Vegas; RHP optioned to Triple-A Las Vegas; OF designated for assignment
Jiménez has struggled with command this season, walking 13 batters in 14 2/3 innings while posting a 3.68 ERA across 15 relief appearances for the A’s. Before Tuesday’s game against the Rangers, manager Mark Kotsay said Jiménez could return later this season once he corrects some mechanical flaws that were identified.

“We want Dany to be the Dany that he was last year,” Kotsay said. “His mechanics are a little bit off right now. … Dany can go down, reset, get his mechanics right, come back and be that guy we know he can be in the seventh inning.”

Ferguson, who lasted in big league camp with the A’s as a non-roster invite until the final days before the regular season, has continued pitching well at Triple-A, allowing eight runs (four earned) in 14 games for the Aviators, with 24 strikeouts and five walks in 15 innings. The 30-year-old righty will slot into the bullpen as an option for the middle innings.

“It was a tough decision coming out of camp to leave Tyler off the roster,” Kotsay said. “He’s continued to pitch well at Triple-A. We felt confident about rewarding him and getting him up here with this opportunity to pitch.”

Armenteros, who signed with the A’s as a 17-year-old out of Cuba for $3 million during the 2016-17 international signing period, was added to the club’s 40-man roster this offseason but struggled at Triple-A this season, hitting .133 with a .528 OPS and 37 strikeouts in 72 plate appearances.

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10-DAY/15-DAY INJURED LIST

2B (left oblique strain)
Expected return: Mid-May
Gelof is set to join Triple-A Las Vegas on May 10 to begin a rehab assignment, marking his first game action since landing on the injured list on April 24. The A’s will monitor how he feels coming out of each rehab game before setting a timetable for his return. (Last updated: May 8)

SS (left ankle sprain)
Expected return: TBD
After Hernaiz exited Oakland’s loss to Texas on May 7 after landing awkwardly on the first-base bag while trying to beat out an infield hit, MRI results revealed a “severe” sprain of his left ankle. He was set to visit a foot specialist at Stanford Medical Center on May 8, and there is no timetable for a return. (Last updated: May 8)

OF Miguel Andujar (right knee)
Expected return: May
Andujar, who ran the bases at the Coliseum on May 8, is expected to begin a Minor League rehab assignment during the week of May 13. Having undergone surgery to repair a torn meniscus in his right knee on March 27, Andujar is expected to join the A’s once the club determines he is fully built up. (Last updated: May 8)

LHP (stress reaction in left rib)
Expected return: Mid-May
Alexander is scheduled to make his next rehab appearance with Triple-A Las Vegas on May 10. If all goes well, there is a chance the left-hander could be activated off the IL at some point during the week of May 13. (Last updated: May 8)

RHP (lower back strain)
Expected return: Late May
Boyle landed on the 15-day IL on May 6 after he was diagnosed with a lower back strain. There is no timetable for a return to action at this time. (Last updated: May 6)

60-DAY IL

LHP (left elbow sprain)
Expected return: TBD
After a setback in his rehab process following a live batting practice session on April 29, Waldichuk is scheduled to see elbow specialist Dr. Neal ElAttrache in Los Angeles on May 13. He remains shut down from throwing for the time being. (Last updated: May 8)

INF (right calf strain)
Expected return: June
Díaz is set to begin a rehab assignment with Triple-A Las Vegas on May 10. Given that he missed most of Spring Training due to injury, the A’s plan to take a slow approach to his rehab process and do not have a timetable for his return at this time. (Last updated: May 8)

LHP (left knee irritation)
Expected return: TBD
Newcomb was scheduled to throw a sim game on May 10 at the club's Minor League complex in Arizona. There is no timeline for a return. (Last updated: May 8)

RHP (Grade 2 MCL sprain)
Expected return: June
Medina faced hitters in a 20-pitch live bullpen at the Coliseum on May 6 and came away feeling healthy. He will next head to the club’s Minor League complex in Arizona to throw in a sim game on May 10 and could begin a rehab assignment soon after that. (Last updated: May 6)

RHP (right hip inflammation)
Expected return: June
Tarnok reported to the A’s Minor League complex in Arizona on April 29. He was scheduled to throw a bullpen session on April 30 and a live batting practice session on May 2. Tarnok was transferred to the 60-day injured list on May 3, and there is no timetable for him to begin a rehab assignment. (Last updated: May 4)

RHP (Tommy John surgery)
Expected return: 2025
After feeling discomfort following his Cactus League outing on March 16 against the Brewers, MRI results revealed a full tear of the ulnar collateral ligament in Gott’s right elbow. He is set to undergo Tommy John surgery, which will cause him to miss the entirety of the 2024 season. (Last updated: March 24)

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