NFL: Vince Young's lawyer says loan in dispute

Each veteran has been rehabilitating a torn ACL sustained in January. Mendenhall's right knee was injured in the Jan. 1 regular-season finale at Cleveland, while Hampton's left knee ligament was torn in the Jan. 8 playoff loss at Denver.

The Mendenhall move was particularly unexpected because the stress placed on the knee by lateral cuts typical of a running back usually results in a longer recovery time. General manager Kevin Colbert has publicly suggested, on numerous occasions, that Mendenhall would begin the regular season on the PUP list.

BENGALS WAIVE SHIPLEY: The Bengals have waived receiver Jordan Shipley, who was limited in training camp while he recovered from reconstructive knee surgery.

Shipley was Cincinnati's starting slot receiver before he tore the anterior cruciate ligament in his left knee Sept. 18. He wasn't cleared to practice fully until July 30. A third-round pick in 2010, he had one catch for 4 yards in the Bengals' two preseason games.