I'll take Cardinals ace Jack Flaherty against a motley crew of overworked Padres pitchers. 
The Padres' bullpen is extremely overworked after their first two game starters, Chris Paddack and Zach Davies, managed just a combined 4 1/3 innings. San Diego is in this jam because their two best starters, Dinelson Lamet and Mike Clevinger, are injured. 
Flaherty didn't have the dominant season he had last year, but he's still darn good and has a strong history versus the Padres with a 1.10 ERA and 1.16 WHIP in three career starts. 
The Padres were averaging just 3.8 runs during their last 13 games until scoring 11 runs yesterday.