Indianapolis adds 2 more starters to injured reserve list
Kelly missed the last three games with a concussion after sitting out the Colts' first four games with a broken foot. He was Indy's first-round draft pick in 2016 and started all 16 games.
Bostic led the Colts in tackles with 97. He left Thursday's game in the second half with a knee injury and coach Chuck Pagano did not update Bostic's condition Monday.
Pagano reiterated, though, tight end Brandon Williams continues to improve after suffering a concussion Thursday. Williams had to be strapped to a backboard and was carted off the field.
For more NFL coverage: http://www.pro32.ap.org and http://www.twitter.com/AP-NFL
Updated December 18, 2017