Monessen made a late-game run, but Greyhounds came up short in their bid to give Dan Bosnic a win in his debut Friday night with a 63-59 non-section loss at Greensburg Central Catholic.
The Centurions broke a 29-29 halftime tie with a 20-10 advantage in the third quarter, and then held off a late Monessen rally for the season-opening win.
The Greyhounds outscored GCC in the fourth quarter, 20-14.
Geoff Helms scored 16 points in the victory.
Elijahwa Payne finished with a double-double for Monessen, scoring 19 points and grabbing 11 rebounds.
Monessen 17-12-10-20 -- 59
Greensburg C.C. 10-19-20-14 -- 63
Monessen: Elijahwa Payne 19. Greensburg C.C.: Geoff Helm 16. Records: Monessen (0-1), Greensburg C.C. (1-0).