Brent Rooker homered, Paul Blackburn pitched six sparkling innings and the Oakland Athletics earned their second win of the season, beating the Detroit Tigers 4-0. Zack Gelof walked and scored three times as Oakland ended a four-game losing streak. Detroit only got two runners to second base in the first seven innings. The Tigers are off to a 6-2 start, but their lineup has been shaky so far. Blackburn continued his strong start to the season. The right-hander allowed three hits, struck out four and walked none. Detroit’s Kenta Maeda allowed three runs in 5 1/3 innings.