Manager Terry Francona said Thursday that Aviles has been experiencing concussion symptoms, MLB.com's Jordan Bastian reports. Though he won't go on the 7-day DL since it isn't necessary in September, Aviles will still be subjected to the league's concussion protocol. He initially passed his post-game concussion tests after he was removed Monday following a spell of dizziness, but as is common, his symptoms began to surface a couple days later. There's no concrete timetable for when Aviles might be available for the Indians, who have more than enough depth to get by without him, thanks to the reinforcements they called up earlier in the week.