Gay (quadriceps) was a full participant during practice Thursday, Nate Atkins of The Indianapolis Star reports.
Gay didn't practice Wednesday, but his return to a full session Thursday is an encouraging sign that suggests he'll be handling kicking duties for the Colts on Sunday against the Bears. After missing the Colts' Week 1 loss to the Texans, Gay returned to action for the Week 2 loss to the Packers and knocked down his lone extra-point try and one of two field-goal attempts.