The Omaha Nighthawks are giving Eric Crouch another shot at professional football. The United Football League team held a news conference Tuesday to announce it has signed the 2001 Heisman Trophy winner who once starred down the road at Nebraska. Crouch, 32, said he's looking forward to getting one more chance to play football in his hometown but also said he's not out to prove himself. "This is an exciting time for me to be part of football again at a high level," he said.