INDIANAPOLIS -- The Indianapolis Colts complete their final phase of offseason workouts with their three-day mandatory minicamp this week. Unlike last year when safety LaRon Landry showed up to minicamp with a lower leg injury, there shouldn't be any surprises at this year's minicamp because there's been solid attendance since the players returned in April.

The next time the players will be required to be together is when they report for the start of training camp at Anderson (Ind.) University on Aug. 1 after the minicamp ends on Thursday.

Here are several topics to keep an eye on this week:

Battle at receiver: It's pretty safe to say T.Y. Hilton and Andre Johnson will be the Colts' top two receivers on the depth chart next season. It's up in the air after that. The battle to be the No. 3 and 4 receivers on the depth chart will be a competitive one for Indianapolis. Donte Moncrief, Phillip Dorsett, Duron Carter and Vincent Brown are all in the mix for those two spots. Moncrief (444 yards) had his moments as a rookie last season. The Colts didn't select Dorsett in the first round to have him spend the season on the sideline. Carter has two years of experience playing in the Canadian Football League. And Brown, who has 72 receptions for 919 yards in his career.

Revolving door at center: The competition is officially still going between Khaled Holmes and Jonotthan Harrison to start at center, but Holmes would be the leader if you had to put them in order. The key for Holmes is staying healthy. An ankle injury caused him to miss most of training camp as a rookie and another ankle injury in the preseason opener last season put him behind Harrison and A.Q. Shipley. Holmes started the final five games of last season, but you can't put him down in permanent ink until he proves he can avoid injury.

What's going on at left guard: Jack Mewhort will be the Colts' starting left guard if Gosder Cherilus is healthy enough to return to be the starting right tackle. Let's just assume for now that Cherilus still isn't healthy when the team reports to training camp, causing Mewhort to slide over to right tackle. Lance Louis and Hugh Thornton are currently the two leading candidates to start at left guard. You would think Thornton would have the edge over Louis because he has started at guard the past two seasons. But Louis has gotten the majority of the snaps with the first team at left guard during the portion of the workouts that have been open to the media.

Pushing Lowery: The Colts signed safety Dwight Lowery because he's a veteran who has starting experience to go with Mike Adams in the secondary. But rookie Clayton Geathers, who the Colts selected in the fourth round, has been impressive so far. He's further ahead than the team envisioned at this point. Lowery is the likely starter, but Geathers will push him for snaps during the season if he continues to progress at his current rate.