Muñoz provides the Cardinals with some extra long relief depth for Sunday’s doubleheader at Busch Stadium. The 25-year-old righty has made three relief appearances this season in the big leagues. He’ll head back to Triple-A Memphis at the conclusion of the nightcap affair.

Muñoz was up with St. Louis for exactly one game in his latest stint with the club. The 25-year-old righty has made three relief appearances this season at the highest level. He figures to oscillate between the Cardinals’ bullpen and Triple-A Memphis for the next couple months.

Muñoz allowed three runs on two hits in 2 2/3 innings while striking out four and walking one. He will be sent down to make room for reliever Matt Svanson.