2:48 PM - Zack Gelof (Ath) Athletics optioned Gelof to Triple-A Las Vegas on Sunday.

5:56 PM - Zack Gelof (Ath) isn't in the lineup for Saturday's game versus Toronto.

5:52 PM - Zack Gelof (Ath) Athletics reinstated Gelof (ribs) from the injured list Friday.

11:49 AM - Zack Gelof (Ath) (ribs) is likely to be activated from the 60-day injured list sometime during this weekend's series versus the Giants, Martin Gallegos of MLB.com reports.

6:00 PM - Zack Gelof (Ath) manager Mark Kotsay said Monday that Gelof (ribs) is slated to play back-to-back, full nine-inning games this week during his rehab assignment, Martin Gallegos of MLB.com reports.

7:21 PM - Zack Gelof (Ath) (ribs) will begin a minor-league rehab assignment with Triple-A Las Vegas on Tuesday, Martin Gallegos of MLB.com reports.

4:27 PM - Zack Gelof (Ath) (ribs) was cleared to begin a hitting progression Saturday, MLB.com reports.

4:32 PM - Zack Gelof (Ath) Athletics transferred Gelof (wrist/ribs) to the 60-day injured list Friday, Martin Gallegos of MLB.com reports.

7:11 PM - Zack Gelof (Ath) team has paused Gelof's (wrist) rehab assignment after being diagnosed with a stress reaction in his ribs, Martin Gallegos of MLB.com reports.

4:00 PM - Zack Gelof (Ath) (wrist) fielded grounders and threw on the field ahead of Saturday's game against the Mets, Martin Gallegos of MLB.com reports.

2:29 PM - Zack Gelof (Ath) will undergo surgery Monday to repair a fractured hamate bone in his right hand, Martin Gallegos of MLB.com reports.

2:35 PM - Zack Gelof (Ath) may undergo further testing on his right hand after not experiencing any improvement since getting hit by a pitch Wednesday, Martin Gallegos of MLB.com reports.

1:29 PM - Zack Gelof (Ath) is day-to-day after X-rays on his right hand came back negative, Martin Gallegos of MLB.com reports.

7:24 PM - Zack Gelof (Ath) will undergo precautionary X-rays on his right hand after getting hit by a pitch in Wednesday's Cactus League game versus the Guardians, Martin Gallegos of MLB.com reports.

6:31 PM - Zack Gelof (Ath) was removed in the sixth inning of Wednesday's spring game against Cleveland after being hit by a pitch on his left elbow, Martin Gallegos of MLB.com reports.