Cardinals RHP Kyle Gibson (back) scratched vs. Marlins

(Photo credit: Albert Cesare/The Enquirer / USA TODAY NETWORK)
St. Louis Cardinals left-hander Matthew Liberatore will take the mound against the host Miami Marlins on Wednesday afternoon after scheduled starter Kyle Gibson was scratched due to tightness in his back.

Liberatore, 24, is 1-2 with a 4.41 ERA in 25 appearances (three starts) this season. He has a bloated 23.14 ERA without a decision in three career meetings