Potentially Bad News

USC safety Josh Pinkard sufered a potentially serious knee injury against Arkansas. Pinkard injured his knee on a punt return and felt a crack. X-rays were negative but he will undergo a magnetic-resonance imaging test to determine if there is ligament damage.
Pinkard was on crutches after the game.
``The guy called a fair catch and I tried to get out of his way, but I just felt it crack,’’ Pinkard said.