As announced Sunday on the St. Louis Cardinals’ official Twitter account …
#STLCards place RHP Jordan Walden (right bicep inflammation) on 15-day DL. Recall RHP Sam Tuivailala from Memphis (AAA)
— St. Louis Cardinals (@Cardinals) May 3, 2015
Walden felt discomfort in his right arm while warming up on Saturday afternoon. He told reporters after Saturday’s game that he’s not concerned, but it’s a scary situation for the Cardinals given how well the 27-year-old setup man pitched in April. Walden, the other piece St. Louis acquired in the Jason Heyward trade, owns a shiny 0.87 ERA and 12/4 K/BB ratio through 10 1/3 innings this season with his new team.
Tuivailala, a hard-throwing 22-year-old, had rattled off nine scoreless innings at Triple-A Memphis.