Broncos defensive lineman Derek Wolfe, who suffered a cervical spine injury Aug. 17, was back at practice Tuesday and is on track to be ready for the Sept 5 season opener, reports ESPN.com. "I was just waiting for the pain to go away," he said. "Zero pain, zero weakness, so that's all good." Wolfe is a key cog who played 84.4 percent of the defensive snaps last season, second-most behind Elvis Dumervil, the report said. Source: CBS Sports