Joey Bosa did not report to the first day of the San Diego Chargers' mandatory minicamp on Tuesday because of an apparent contract dispute.

The rookie defensive end is one of five first-round selections from this year's draft that remain unsigned. Bosa also did not attend Thursday's final day of organized team activities last week.

Bosa is the No. 3 selection overall and first nonquarterback picked in this year's draft, and the main issue appears to be offset language. Bosa's camp wants it left out of his contract, according to the San Diego Union-Tribune.