The sinkerballer looks to wash away the sour taste of his final start before the All-Star break, during which he allowed seven hits and eight runs in a loss to Toronto. Porcello is 2-5 with a 4.85 ERA lifetime at Camden Yards.
Gausman will kick off the Orioles' first homestand of the second half against the Boston Red Sox. The righty ended the first half with a loss to the Phillies in which he gave up 12 hits over five innings but pitched better than his line indicated.