Snell (0-1) was tagged for five runs (just one earned) on eight hits and three walks in only 3.1 innings Thursday against the Mariners.
A pair of Tim Beckham errors extended two rallies against Snell, but he also did himself no favors by throwing only 56 of his 92 pitches for strikes. Snell's posted an astounding 90 strikeouts in 63 innings for Triple-A Durham this season, so there's no doubt he can miss bats, but he's also averaged a walk almost every other inning, which is not a great formula for translating success in the minors to baseball's highest level. The 23-year-old will need to rein in his control to be more effective, but he'll likely see an extended opportunity to make adjustments while pitching at the back end of the Rays' rotation.