Cardinals pitcher Shelby Miller has been diagnosed with back tightness after exiting in the third inning of Tuesday's game against the Rockies, the team announced.
Miller gave up three earned runs on six hits and five walks in 2 2/3 innings while striking out two. All three of the runs he allowed came in the first inning. Miller owns a 3.75 ERA and 66:46 K:BB ratio in 93 2/3 innings. His status for Sunday's scheduled start against the Dodgers is up in the air.