Overview
- Gelof crashed into the fenced portion of the left‑field wall making a sliding catch and appeared to injure his right knee during the game Thursday night, then left under his own power after briefly testing the leg.
- Colby Thomas replaced Gelof in the outfield during the game and Lawrence Butler shifted into right field as trainers and manager Mark Kotsay attended to him on the field.
- The A’s announced on July 10 that Gelof has been placed on the injured list with a right‑knee laceration and that infielder Joey Meneses has been recalled to the active roster to take his spot.
- Gelof had just been activated from a hand injury on July 4 and was hitting .273 with 11 home runs and 29 RBIs at the time, making this absence a notable loss for Oakland’s offense and defensive flexibility.
- With All‑Star slugger Brent Rooker already out for the season, the club will rely on internal options and Triple‑A players such as Max Muncy, Darell Hernaiz and Tommy White while Gelof’s recovery and a timetable are evaluated.