The three-time defending PIAA and WPIAL Class AAAA girl’s basketball champion Mt. Lebanon High School met their match on Thursday night against the Seton – La Salle Lady Rebels’ basketball team. Seton LaSalle (3-0) stunned the high school basketball world by defeating Class AAAA No. 1 Mt. Lebanon, 60-52. Angela Heintz finished the game with 27 points and 12 rebounds.