FLORHAM PARK, N.J. -- As expected, the New York Jets opened training camp on Thursday by placing defensive end Muhammad Wilkerson on the physically-unable-to-perform list. It means he hasn't been cleared to practice.

Wilkerson, who signed a five-year, $86 million contract two weeks ago, is seven months removed from surgery to repair a fractured leg. He may take a few days, perhaps longer before he starts practicing.

The Jets are being cautious, as the goal is to get him ready for the season opener. Wilkerson has vowed to be ready for Week 1.

Other players on the PUP list: Devin Smith, Khiry Robinson, James Carpenter, Breno Giacomini and Kendall James. They can be activated at any time. The most seriously injured is Smith, who had knee surgery last December.