(Casey Pratt/AP) -- Oakland Athletics opening day starting pitcher Brett Anderson left Friday's game after the first inning with what was announced as a sprained right ankle. Anderson gave up four runs on four hits and two walks against the Tampa Bay Rays in his one inning of work on Friday.
The injury occurred when Anderson planted his right foot on the second to last pitch of the first inning while facing Yunel Escobar. On the next pitch, Anderson threw a fastball and Escobar grounded out to end the inning. Anderson was replaced by Evan Scribner, who started the second inning.
''It's pretty sore, a little swollen. It's kind of early to tell the severity of it,'' Anderson told the Associated Press. ''It's kind of depressing. I just landed and felt not great. ... I don't know if my heel hit too hard and kind of jarred something there or what. Just landed a little wrong.''
Anderson hurt his left thumb and left wrist when he was hit by two different baseballs against the Astros on April 7, in Houston. He has been having issues fielding balls hit back up the middle.
He has allowed 11 runs in his last two starts and has a 5.95 ERA. If he has to go on the disabled list, starting pitcher Dan Straily will be the A's next option. Straily started the season in the A's starting rotation and was sent to Triple-A when Bartolo Colon's suspension ended. Straily is 2-0 with a 1.42 ERA and 16 strikeouts in two starts with the River Cats this season.