Source: D'Anton Lynn out 4-6 weeks

Penn State defensive back D'Anton Lynn worked out at the combine with a torn calf muscle that now will sideline him four to six weeks, a league source said.

Lynn could not finish his combine workout and now is expected to work out for NFL scouts in mid-April.

But those who know Lynn knew something was wrong when he ran a sub-standard 4.7 in the 40 at the combine.

Lynn initially hurt his calf in Penn State's bowl game and never took time off because of Senior Bowl preparation. Then, a week before the combine, he tweaked his calf again doing lunges.

The plan was for him to warm up and to skip the run if it felt bad. His competitive juices got the best of him, though, and he jump and ran but could not finish the workout.

Adam Schefter is ESPN's NFL Insider.