Seattle Mariners ace Felix Hernandez is dealing with a "dead arm" and will have his shoulder checked, per Ryan Divish of the Seattle Times.
Hernandez allowed four earned runs in just two innings in Tuesday's 19-9 loss to the Detroit Tigers.
Hernandez also got the starting nod for Seattle on Opening Day against the Houston Astros but left after five innings with groin tightness one inning after he came up limping covering first base.
After the game, Hernandez told Greg Johns of MLB.