Anthony Richardson took a big step toward returning to game action Thursday when he practiced with the Indianapolis Colts as a full participant for the first time since being knocked out of their Week 4 win over Pittsburgh.

Richardson is nursing hip and oblique injuries and was limited in practice every day last week before being ruled out for the Colts’ game at Jacksonville, a 37-34 loss. The quarterback was limited again Wednesday before fully participating Thursday.

At the start of the week, Colts coach Shane Steichen said the QB1 job is Richardson’s as soon as the former fourth overall draft pick is healthy, despite stellar play from veteran backup Joe Flacco.

Richardson, 22, has been limited to eight NFL games (all starts) due to injuries, including a throwing shoulder injury last season that led him to undergo AC joint surgery in October. In four games this year, he has completed 50.6 percent of his passes for 654 yards, three touchdowns and six interceptions, while adding 141 rushing yards with one score.

The Colts (2-3) play at the Tennessee Titans (1-3) on Sunday.