Derek Wolfe suspended 4 games for violating performance-enhancement drug policy

Broncos defensive end Derek Wolfe has been suspended without pay for the first four games of the2015 season for violating the NFL's performance-enhancement drug policy.

Wolfe, a fourth-year pro who was expected to be a key figure in the Broncos' 3-4 defense this season,will be eligible to return to the active roster Oct. 5 after the team's Week 4 home game against theVikings. He will be allowed to participate in training camp and preseason practices and games.