After singling in the top of the seventh inning, Weeks attempted to steal second base during Josh Reddick's at-bat. Reddick fouled the pitch off, and Weeks returned to first. Reddick walked on the next pitch, and manager Bob Melvin and assistant athletic trainer Walt Horn came out and talked with Weeks. Weeks left the game at the end of the discussion and was replaced by pinch-runner Adam Rosales.
Melvin said that he would wait and see before determining Weeks' status for Sunday's series finale in Kansas City.
"I'm not worried about it," Weeks said. "It'll be a group decision. But, as far as me, if it's time to play, I'll be ready to play."
Weeks had a great afternoon before departing, going 1-for-2 with a triple, two walks and two runs scored in the A's 9-3 win over the Royals.
Weeks has a history of injuries to his left hip. He suffered multiple left hip strains throughout his Minor League career.