Cardinals vs. Pirates at Busch Stadium, 7:15 p.m. (FSM)

Cardinals starter:

JAKE WESTBROOK

RH • (10-7, 4.70)

The Cardinals' sinkerballer continues to be frustrated by the home ballpark. In 12 starts at Busch, Westbrook is 3-4 with a 5.96 ERA and a .290 average against. Westbrook has received at least three runs of support in 24 of his 26 starts.

Pirates starter:

JAMES McDONALD

RH • (8-6, 4.21)

The 26-year-old righty has pitched seven innings in only one of his 25 starts, though he's been perceptively better within his innings since the All-Star break. McDonald has allowed three or fewer runs in 15 of his previous 17 starts.