Gay didn't practice Wednesday due to a neck injury.
Gay converted both of his field-goal attempts and made his lone point-after try in the Colts' Week 15 loss to the Broncos, but he appears to have emerged from the game with the neck injury. Indianapolis doesn't have another kicker on its practice squad or active roster, so the team may need to add one if Gay is unable to practice again Thursday. Regardless, Gay's participation Thursday and Friday will provide the best indication of whether he can suit up Sunday, when the Colts face the Titans.