The Raiders' abrupt release of Christian Wilkins last week wasn't only about his lingering foot injury, it seems.

Though much of Wilkins' release was related to his foot injury, HR reportedly investigated last week after the DT kissed a teammate on the head.

The Las Vegas Raiders recently released defensive tackle Christian Wilkins and are attempting to void the remainder of the guaranteed money ($35.2 million) on his contract due to his alleged treatment on the rehab from a foot injury,