James Shields allowed two runs (one earned) in 4 2/3 innings of work in Monday's start against the Mariners. Recently given the Opening Day nod by manager Ned Yost, Shields continued his good spring, pitching into the fifth inning. The right-hander allowed five hits, didn't walk anyone, and struck out five. His Cactus League ERA is now 1.04 in 8 2/3 innings.