Pirates starter Chris Archer (3-6, 5.42) has been in a bit of a groove of late, recording a 4.05 ERA in his four starts since ditching the two-seam fastball. That includes his last outing on Friday where he spun six masterful innings before being charged for his only three runs allowed in the seventh.
The Cardinals will turn to youthful starter Daniel Ponce de Leon (1-0, 1.99). The rookie has been bouncing between AAA, the bullpen and rotation this season, but he is stretched out for a long outing if necessary. He tossed 105 pitches over 6.