5:56 PM - Zack Gelof (Ath) successfully underwent surgery on his left shoulder Wednesday, Jason Burke of SI.com reports.

3:25 PM - Zack Gelof (Ath) was placed on the 10-day injured list Saturday with a dislocated left shoulder.

8:07 PM - Zack Gelof (Ath) was removed from Friday's game against the Pirates with an apparent wrist injury, Jason Burke of SI.com reports.

3:42 PM - Zack Gelof (Ath) is out of the lineup for Wednesday's game against the Red Sox.

3:43 PM - Zack Gelof (Ath) is not in the lineup for Tuesday's game in Boston.

3:07 PM - Zack Gelof (Ath) is out of the lineup for Sunday's game against the Reds.

3:23 AM - Zack Gelof (Ath) went 2-for-4 with a home run, a double and four total RBI In a 7-0 victory versus the Tigers on Wednesday.

5:10 PM - Zack Gelof (Ath) Athletics recalled Gelof from Triple-A Las Vegas on Monday.

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.

6:44 PM - Zack Gelof (Oak) isn't in Oakland's lineup for Saturday's game against the Mariners.

11:50 AM - Zack Gelof (Oak) went 1-for-3 with an RBI sacrifice fly, a stolen base and a run in a win over the Rangers on Tuesday.

6:59 AM - Zack Gelof (Oak) went 3-for-4 with an RBI single, a double and a walk in a loss to the White Sox on Saturday.

11:35 AM - Zack Gelof (Oak) went 2-for-4 with an RBI double in a win over the White Sox on Friday.

7:41 PM - Zack Gelof (Oak) went 2-for-3 with a walk, one RBI and a stolen base in Sunday's 9-1 loss to the Tigers.

8:07 AM - Zack Gelof (Oak) went 1-for-4 with a stolen base and a run in a loss to the Athletics on Saturday.

10:13 AM - Zack Gelof (Oak) went 2-for-4 with two runs scored and two stolen bases in Wednesday's 9-6 win over the Reds.

11:47 AM - Zack Gelof (Oak) went 1-for-4 with a solo home run in a win over the Reds on Tuesday.

11:36 AM - Zack Gelof (Oak) went 3-for-4 with a stolen base and two runs in a loss to the Brewers on Saturday.

12:06 PM - Zack Gelof (Oak) went 1-for-4 with a stolen base in Wednesday's loss to the Rays.

12:03 PM - Zack Gelof (Oak) went 2-for-3 with a double and a run in a win over the Rays on Monday.

3:35 PM - Zack Gelof (Oak) went 1-for-4 with a walk and a stolen base in a win over the Mets on Tuesday.

8:43 AM - Zack Gelof (Oak) went 2-for-4 with a solo home run in Tuesday's loss to the White Sox.

12:16 PM - Zack Gelof (Oak) went 0-for-2 with two walks, a stolen base and two runs in a win over the White Sox on Monday.

5:08 PM - Zack Gelof (Oak) is not in the starting lineup Saturday versus the Dodgers.

11:31 AM - Zack Gelof (Oak) went 2-for-3 with a walk in a win over the Giants on Tuesday. He was also caught stealing twice.

3:43 PM - Zack Gelof (Oak) is out of the lineup for Sunday's game against the Angels.

7:24 PM - Zack Gelof (Oak) is absent from the starting lineup for Saturday's game against the Angels.

7:35 AM - Zack Gelof (Oak) went 1-for-4 with a solo home run in Tuesday's 8-2 win over the Astros.

11:46 AM - Zack Gelof (Oak) went 1-for-4 with a two-run double in a win over the Orioles on Saturday.

7:12 PM - Zack Gelof (Oak) went 0-for-3 with a walk, a stolen base and a run scored in Thursday's 5-0 win over the Angels.

9:34 AM - Zack Gelof (Oak) went 1-for-4 with a solo home run in Sunday's 5-1 loss to the Diamondbacks.

2:33 PM - Zack Gelof (Oak) is out of the lineup for Wednesday's game against the Angels.

3:04 AM - Zack Gelof (Oak) went 2-for-4 with a two-run home run in a loss to the Royals on Thursday.

11:51 AM - Zack Gelof (Oak) is not in the lineup for the first game of Sunday's doubleheader against the Twins.

11:21 AM - Zack Gelof (Oak) is not in the starting lineup Saturday against the Twins.

12:29 PM - Zack Gelof (Oak) went 2-for-4 with an RBI double in a loss to the Padres on Wednesday.

2:39 PM - Zack Gelof (Oak) is out of the lineup for Sunday's game against the Blue Jays, Martin Gallegos of MLB.com reports.

10:19 AM - Zack Gelof (Oak) went 1-for-5 with a stolen base in an extra-innings loss to the Rays on Thursday.

12:47 PM - Zack Gelof (Oak) went 2-for-5 with a game-tying RBI single in an extra-innings loss to the Rockies on Wednesday.

11:42 PM - Zack Gelof (Oak) (oblique) went 0-for-4 with three strikeouts in Tuesday's 2-1 extra-inning loss to the Astros.

4:30 PM - Zack Gelof (Oak) (oblique) was reinstated from the 10-day injured list and is starting at second base Tuesday against the Astros.

6:24 PM - Zack Gelof (Oak) (oblique) has rejoined the Athletics and could be activated during their current series in Houston, Martin Gallegos of MLB.com reports.

2:26 PM - Zack Gelof (Oak) (oblique) will join Triple-A Las Vegas this weekend to begin a rehab assignment, Martin Gallegos of MLB.com reports.

2:47 PM - Zack Gelof (Oak) (oblique) has progressed to taking light swings in the batting cage, but he remains without a firm timetable for return, MLB.com reports.

3:02 PM - Zack Gelof (Oak) (oblique) fielded grounders and played catch Wednesday, Martin Gallegos of MLB.com reports.

7:41 PM - Zack Gelof (Oak) (oblique) is currently shut down from baseball activity, Martin Gallegos of MLB.com reports.

2:07 PM - Zack Gelof (Oak) Athletics placed Gelof on the 10-day injured list Thursday with a strained left oblique.

7:03 PM - Zack Gelof (Oak) was scratched from Oakland's lineup ahead of Wednesday's matchup against the Yankees due to left abdominal soreness, Martin Gallegos of MLB.com reports.

6:24 PM - Zack Gelof (Oak) was scratched from Oakland's lineup ahead of Wednesday's game versus the Yankees, Martin Gallegos of MLB.com reports.

6:22 PM - Zack Gelof (Oak) went 1-for-4 with a two-run home run during Monday's 2-0 win over the Yankees.

12:05 PM - Zack Gelof (Oak) went 2-for-4 with a stolen base in a loss to the Guardians on Sunday, but he still carries a .158/.200/.158 slash line over the 40 plate appearances covering his last 10 games.

6:53 PM - Zack Gelof (Oak) collected four hits including a home run and a triple with four RBI and three runs scored during Sunday's win over the Tigers.

11:15 PM - Zack Gelof (Oak) went 2-for-4 with a double and a stolen base in a loss to the Guardians on Saturday.

2:24 PM - Zack Gelof (Oak) went 1-for-3 with a solo home run in the Athletics' Cactus League loss to the Padres on Thursday.

12:44 PM - Zack Gelof (Oak) went 2-for-5 with a stolen base in an extra-inning loss to the Blue Jays on Monday.

12:22 PM - Zack Gelof (Oak) went 2-for-4 with a walk and two runs in a win over the Angels on Sunday.

11:04 AM - Zack Gelof (Oak) went 2-for-5 with a two-run double, another two-bagger and a run in a win over the Angels on Friday.

3:19 AM - Zack Gelof (Oak) went 1-for-4 with a two-run home run against the White Sox in an 8-5 win Thursday.

8:34 AM - Zack Gelof (Oak) went 4-for-5 with two doubles, a run scored, two RBI and a stolen base in Wednesday's 8-0 win over the Cardinals.

3:19 PM - Zack Gelof (Oak) went 1-for-4 with a solo home run in a win over the Rangers on Wednesday.

11:47 AM - Zack Gelof (Oak) went 3-for-4 with a double, a stolen base and two runs in a win over the Giants on Sunday.

10:02 AM - Zack Gelof (Oak) went 1-for-5 with a two-run home run in a win over the Rockies on Friday.

9:42 AM - Zack Gelof (Oak) went 1-for-3 with two walks and a run in a loss to the Astros on Friday.

1:12 PM - Zack Gelof (Oak) is out of the lineup for Wednesday's game against the Red Sox.

12:45 PM - Zack Gelof (Oak) went 1-for-4 with a triple, two stolen bases and two runs in a loss to the Twins on Saturday.

12:16 PM - Zack Gelof (Oak) whose contract was selected from Triple-A Las Vegas earlier in the day, went 1-for-4 with an RBI double in his big-league debut against the Twins on Friday.

4:04 PM - Zack Gelof (Oak) contract was selected from Triple-A Las Vegas ahead of Friday's game against the Twins.

6:37 PM - Zack Gelof (Oak) will be called up from Triple-A Las Vegas by the Athletics on Friday to make his major-league debut, Martin Gallegos of MLB.com reports.

10:33 AM - Zack Gelof (Oak) owns a .280 average and .871 OPS across 181 plate appearances over 41 games with Triple-A Las Vegas.

4:11 PM - Zack Gelof (Oak) Las Vegas reinstated Gelof (shoulder) from its 7-day injured list Wednesday.

2:01 PM - Zack Gelof (Oak) is on the 7-day injured list at Triple-A Las Vegas with a left shoulder strain and is expected to return this month, Melissa Lockard of The Athletic reports.