OAKLAND, Calif. (AP) Josh Donaldson homered and doubled twice to back another solid start by Jesse Chavez, and the Oakland Athletics beat the Houston Astros 4-1 on Sunday to complete a series sweep.

Jed Lowrie and Eric Sogard added two hits apiece for the A's, who have won 11 of 13. Oakland has the best record in the American League despite a shaky defense that committed its AL-leading 19th error.

Chavez (1-0) allowed four hits over six innings and retired seven of the final eight batters he faced after giving up a solo home run to Marwin Gonzalez in the fourth. Chavez struck out three and walked one to lower his team-leading ERA to 1.38 through four starts.

Gonzalez had two hits for the Astros. Houston has dropped seven straight.

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