The Angels insist Bartolo Colon's troublesome right shoulder is sound and say the veteran right-hander's recent struggles have more to do with pitch execution than any physical problems. Since returning from a rotator-cuff tear in late April and going 5-0 with a 3.69 earned-run average in his first six starts, Colon is 1-2 with a 9.15 ERA in his last four starts, giving up 21 earned runs and 35 hits, including nine homers, in 20 2/3 innings. But Colon's fastball was consistently clocked around 94 mph Thursday in Cincinnati, where he gave up four earned runs in six innings of a 9-7 victory, and pitching coach Mike Butcher said the movement on Colon's two-seam and four-seam fastballs is still "as good as any pitcher in the game."