St. Louis Cardinals' Willson Contreras misses game due to back spasms, expected to return soon.

St. Louis Cardinals first baseman Willson Contreras will miss Friday's game against the Arizona Diamondbacks due to back spasms. As a precaution, he was replaced by Alex Burleson, with other lineup changes affecting Brendan Donovan, Nolan Gorman, and Lars Nootbaar. Contreras, hitting .250 with six homers and 28 RBI, is expected back soon; he has played in 49 of 50 games this season.