Newcomb (triceps) will serve as the opening pitcher during Saturday's game against the Tigers, Scott Merkin of MLB.com reports.
Newcomb was removed from his last appearance with a triceps contusion after getting hit by a comebacker, but he seems to be feeling well enough to take on his first opening assignment of the season Saturday. The 33-year-old southpaw has been one of the most reliable members of Chicago's bullpen this season, turning in a 2.76 ERA and 1.04 WHIP across 42.1 frames. He could remain in the game for multiple innings before allowing the bullpen to take over.