James Shields inexplicably imploded Wednesday against the A's, allowing 10 runs on 12 hits and two walks over four innings. It was easily his worst start of the season. Shields also gave up 10 runs -- in just 3 1/3 innings -- against the Yankees in 2007. The 29-year-old right-hander saw his ERA balloon from 2.53 to 3.03 during tonight's outing. Assuming he's not traded, Shields will take on the Blue Jays next week.