Tigers outfielder Rajai Davis hit a walk-off grand slam to give Detroit a 5-4 win over the Oakland A's last night at Comerica Park. Miguel Cabrera also had a solo home run as Detroit took the opener of a three-game series against Oakland. Starter Anibal Sanchez gave up three runs, two earned, on eight hits while striking out two in seven innings. Sanchez earned his one-thousandth strikeout of his career in the fourth inning. Reliever Blaine Hardy earned his first win of the season with a perfect ninth. Tonight, Rick Porcello takes the mound for the Tigers while the A's counter with Brad Mills.