Buffalo Bills running back James Cook put aside his contract concerns — and avoided the potential of being fined — by attending the start of the team’s three-day mandatory series of practices on Tuesday.

Despite still waiting for a new contract extension, James Cook chose to attend this week's Buffalo Bills mandatory minicamp. Various other NFL stars seeking a new extension opted to skip minicamp during negotiations.

Buffalo Bills running back James Cook is in attendance at the team's mandatory minicamp despite an ongoing dispute over a new contract Cook, the Bills' leading rusher in each of the past two seasons,