The worst-case scenario that quarterback Kerry Collins and the Giants' coaching staff feared Saturday night did not materialize yesterday. Tests on Pete Mitchell did not reveal a season-ending injury, but the Giants' only experienced pass-catching tight end will be out of action for the Sept. 3 opener against the Arizona Cardinals, and possibly longer.

Mitchell severely sprained his left knee in the Giants' 20-8 loss to the Bears on Saturday at Giants Stadium. An M.R.I. yesterday ruled out a torn anterior cruciate ligament, an injury that would have ended Mitchell's season.

Mitchell is seen here on a HOPE Crutch