Felix Doubront permitted three runs -- two earned -- on four hits and four walks over five innings in a loss to the Tigers. Doubront has worked on tweaking his mechanics in hopes that he'll have better control and be more efficient, but it didn't work in this one. Though he's pitched much better of late, the lefty still has a 4.33 ERA and 1.49 WHIP this season. He shouldn't be trusted against the red-hot Blue Jays at Fenway next weekend.