Much of the attention going into Saturday’s WPIAL Class 3A semifinal between No. 1 Shady Side Academy and No. 4 Avonworth centered around the Bulldogs’ acclaimed freshman duo of Karis Thomas and Maggie Spell. By the time the final horn sounded, though, it was Greta O’Brien who stole the show. The Antelopes’ 5-8 sophomore guard […]