INDIANAPOLIS (AP) -- Three Indianapolis Colts -- all Pro Bowlers last season -- are skipping another round of voluntary workouts.

Receiver Reggie Wayne does not traditionally show up until the mandatory offseason workouts. Indianapolis police are investigating credit card charges after Wayne told them an ex-girlfriend may have used his credit card number to make more than $93,000 in online purchases.

Defensive end Robert Mathis reportedly wants to renegotiate his contract and did not attend any team workouts in May. Safety Antoine Bethea has not signed his one-year tender with the Colts.

Coach Jim Caldwell says he isn't sure if any of the players will attend this weekend's mandatory three-day mini-camp but that he hopes they'll participate.