When Yankees fans last booed Javier Vazquez, he was leaving the game after giving up five runs and three home runs in three-plus innings to the White Sox on May 1. With his ERA hovering at 9.78, that prompted the Yankees to pull him from the rotation before the Red Sox series and have him work with pitching coach Dave Eiland to see what's wrong.

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Vazquez worked on his mechanics in two strenuous bullpen sessions during his 10-day hiatus, and he is scheduled to face the Tigers tonight at Comerica Park to see if he's learned anything about what went wrong. Vazquez (1-3) hasn't thrown six full innings in any of his starts this season. Not good for a guy who was supposed to eat innings.

Yankees hitters enter the game knowing they likely will be called upon for plenty of run support, and they just might produce it against Detroit righthander Rick Porcello, who has his own problems with a 2-3 record and 7.50 ERA. Porcello has allowed at least five earned runs three times while losing three of his past four starts. In his only other start against the Yankees last season, Porcello lasted just 3.2 innings while allowing six runs on six hits and three walks.