Krook agreed to a minor-league contract with the Athletics on Saturday.

EDGE Analysis

Krook elected free agency earlier in the month after being sent outright to Cleveland's Triple-A affiliate, and he's since decided to return to the A's. He made three appearances for the Athletics during the 2025 season, surrendering two runs on five hits and one walk while striking out three over 3.1 innings.

The Guardians outrighted Krook to Triple-A Columbus, and he elected free agency Thursday, Tim Stebbins of MLB.com reports.

EDGE Analysis

Krook's only big-league appearances came with the A's, but he spent the final four months of the season in the Guardians' organization. He'll likely find a minor-league deal around the league this winter.

The Guardians claimed Krook off waivers from the Athletics on Thursday and optioned him to Triple-A Columbus, Tim Stebbins of MLB.com reports.

EDGE Analysis

Krook was pushed off the Athletics' 40-man roster Tuesday after allowing two runs in 3.1 innings. He owns a 3.21 ERA in 14 Triple-A frames this season, however, and he'll now attempt to work his way back into the big leagues with Cleveland. Ben Lively (elbow) was transferred to the 60-day IL to make room for Krook on the 40-man.

The Athletics designated Krook for assignment Tuesday.

EDGE Analysis

The left-hander was optioned to Triple-A Las Vegas on Thursday and has now lost his place on the 40-man roster. Krook will likely remain with Vegas if he passes through waivers unclaimed.

The Athletics optioned Krook to Triple-A Las Vegas on Thursday.

EDGE Analysis

Krook made three appearances during his short time with the big club, yielding two runs over 3.1 innings. Carlos Duran was called up from Triple-A in a corresponding move and will take Krook's spot in the bullpen.

The Athletics selected Krook's contract from Triple-A Las Vegas on Friday.

EDGE Analysis

Krook signed a minor-league deal with the A's during the offseason and has since turned in a 3.21 ERA and 1.57 WHIP alongside a 21:8 K:BB across 14 innings in Triple-A. Searching for some answers in their bullpen, the Athletics will give the 30-year-old southpaw another look in the bigs. However, with 13 earned runs allowed in just five career MLB innings, Krook will almost certainly be limited to a low-leverage role.

Krook signed a minor-league contract with the Athletics on Friday.

EDGE Analysis

Krook surrendered two earned runs in one inning during his lone MLB appearance with Baltimore last season. He was much more effective during his time with Triple-A Norfolk, however, posting a 3.92 ERA and 1.41 WHIP across 43.2 frames. Now with the A's, the 30-year-old southpaw will most likely fill in as organizational depth at Triple-A Las Vegas.

The Orioles outrighted Krook to Triple-A Norfolk on Friday, Roch Kubatko of MASNSports.com reports.

EDGE Analysis

Krook was dropped from the 40-man roster earlier this week but will remain in the organization after passing through waivers unclaimed. He holds a 4.11 ERA and 1.43 WHIP with 41 strikeouts over 35 innings this season at Norfolk.

Krook was designated for assignment by the Orioles on Tuesday, Rich Dubroff of BaltimoreBaseball.com reports.

EDGE Analysis

Krook has spent the majority of 2024 campaign with Triple-A Norfolk, where he'll likely remain if he clears waivers. The left-hander owns a 4.11 ERA and 1.43 WHIP with 41 strikeouts over 35 innings in 34 appearances out of Norfolk's bullpen this year. With the Orioles acquiring a handful of players during Tuesday's trade deadline, Krook appears to have been one of the odd men out on the 40-man roster.

The Orioles optioned Krook to Triple-A Norfolk on Monday.

EDGE Analysis

He'll head back to Triple-A to reopen a spot on the 26-man active roster for right-hander Corbin Burnes (personal), who was reinstated from the paternity list. During his three-day stay with the Orioles, Krook made his lone relief appearance in Sunday's 11-2 loss to the Rangers, giving up three runs (two earned) on one hit and one walk while striking out two over one inning.