Pasadena police Commander Darryl Qualls says an estimated 50 to 75 fans fought in the lot at about 4:30 p.m. Saturday, three hours before the rival Bruins and Trojans were set to play.
Qualls says the stabbing victims were taken to Huntington Memorial Hospital in fair condition, and three people have been jailed on suspicion of attempted murder.
He says one officer sprained a hand and another sprained an ankle while responding to the fight. Both were treated at the hospital and released.
Qualls says school passions and alcohol were both major factors in the brawl.