The bottom half of the bracket in the PIAA Class AA boys basketball playoffs consists entirely of WPIAL team, with WPIAL champion Monessen among the final four.
The Greyhounds (25-2), winners of 20 straight, play Sto-Rox (23-4) Saturday afternoon, 1:30 p.m. at North Allegheny High School. The game follows another Class AA quarterfinal between Beaver Falls (21-6) and Greensburg Central Catholic (25-3), which is scheduled for noon.
Monessen has yet to face a WPIAL team in the state playoffs, beating Mercyhurst Prep and North Star through two rounds. Sto-Rox defeated Sharpsville and Jeannette to get to this point.