A daily review of the hot topics coming out of Indianapolis Colts training camp:

• There was a welcomed sight on the practice field for the Indianapolis Colts on Wednesday. Running back Trent Richardson returned to practice after sitting out the previous three practices with a hamstring problem. Richardson, the likely starter in Week 1, took snaps with the second unit behind Ahmad Bradshaw.

• The Colts suffered a slight scare when receiver T.Y. Hilton, who had a team-high 1,083 yards receiving last season, left the field holding his right hand after failing to catch a long pass from quarterback Andrew Luck on his backside in the end zone on a play defended by cornerback Greg Toler. Hilton immediately grabbed his hand in pain and made his way to the sidelines. The medical staff looked at his hand and put ice on it. Fortunately for the Colts, Hilton only had a jammed finger. As far as the rest of the injuries go, tight end Dwayne Allen (precaution), safety LaRon Landry (groin) and cornerback Vontae Davis (groin) did not practice Wednesday. Landry and Davis, who have yet to practice in training camp, did some work in pads off to the side.

• It seemed the fourth receiver spot would come down to Da’Rick Rogers and Griff Whalen at the start of training camp because they’re familiar with the system. Not so fast. Rookie Donte Moncrief is doing his best to stay in the mix. The Colts’ third-round pick had one of his best training camp practices Wednesday when he made three nice catches, including one for a touchdown. Moncrief’s best catch came when he jumped and came down with the ball with both feet inbounds while being closely defended on the play. With Hilton and Reggie Wayne (precaution) sitting out the end of practice, Moncrief was able to get some snaps with the first team.

• Speaking of getting snaps with the first team, safety Mike Adams got some extensive time with the first unit in the secondary. Adams is competing with Sergio Brown and Delano Howell to start alongside Landry at safety. Howell had been getting the majority of the snaps with the first team before Wednesday.