Gaines (knee) is questionable for Sunday's game versus the Colts, Sarah Barshop of ESPN.com reports.
Gaines started against the Colts in Week 13, but he missed last week's loss to the Bears. The 29-year-old will look to return to action after logging a trio of limited practices this week. If he can't go, Keion Crossen likely will step into the starting cornerback role again.