Brantley was replaced in Monday night's game against the Los Angeles Angels after he took a blow to the head while sliding into second base. He came to the ballpark Tuesday "feeling good," Indians manager Terry Francona said, but was scratched after he told team medical officials he "didn't feel perfect" after going through some of his normal gameday activities.
"With a head injury ... we'll error on the side of caution," Francona said. "We sent him for some tests. We might even know more (before Tuesday night's game)."
Francona said he had two lineups in mind for Tuesday, one with Brantley and one without him. Ryan Raburn was inserted into Brantley's usual spot in left field.
A potential All-Star, Brantley is batting .323 with a .391 on-base percentage, 11 home runs and 46 RBI.