Josh Phegley exited in the ninth inning of Tuesday's loss to the Rangers after being hit by a pitch in the left knee.
Athletics activated C Josh Phegley from the 15-day disabled list.
Josh Phegley (knee) will begin a minor league rehab assignment with Triple-A Nashville on Saturday.
Athletics placed C Josh Phegley on the 15-day disabled list, retroactive to May 10, with right knee inflammation.
Athletics manager Bob Melvin said Monday that Josh Phegley (knee) could hit the disabled list if he's not ready by the weekend.
Josh Phegley (knee) will remain unavailable until at least Monday.
Josh Phegley (knee) is out of the A's starting lineup again on Saturday against the Rays.
Josh Phegley was given a cortisone shot in his right knee on Thursday to combat some inflammation.
Josh Phegley went 1-for-2 with a double, a walk and a run scored in Saturday's win over the Astros.
Josh Phegley is starting at catcher and batting second for the Athletics on Tuesday night against the Angels.
Josh Phegley (flu, shoulder) might not play until Friday.
Josh Phegley (concussion) has officially been ruled out for the season.
Josh Phegley (concussion) said Tuesday that "it's not looking good" for his return this season.
Josh Phegley has been diagnosed with a concussion.