CLEVELAND -- The A's beat up on Justin Masterson, and they never really stopped until the series sweep was complete.The Athletics chased Cleveland's ace after 4 1/3 innings on the way to a 13-3 win on Sunday at Progressive Field, Oakland's ninth victory in its last 10 games.Yoenis Cespedes drove in a career-high five runs, and Josh Donaldson scored a career-high four runs, as the persistent A's racked up 12 hits and nine walks against Indians pitchers.Loading up with lefties to face Masterson (2-3), the Athletics reached base every inning against him. For that matter, the A's had at least one runner in every inning except the ninth. Oakland scratched out a run in the second inning, when Lonnie Chisenhall threw a Cespedes grounder past first base near the photography pit. But the real damage came later.Donaldson and Brandon Moss drew walks to lead off the fourth, and back-to-back hits by John Jaso and Josh Reddick brought them home.Donaldson and Moss came back up an inning later, knocking back-to-back RBI hits. When Cespedes doubled both home, Masterson's afternoon came to a close.Oakland scored seven runs on seven hits and five walks against Masterson, taking pressure off Jesse Chavez.Chavez (4-1) worked well on the fringe of the strike zone, catching four of his six strikeout victims looking. But because so many Indians hitters put together long at-bats, Chavez logged only five innings before checking out at the 109-pitch mark.Coming in with a 9-2 lead in the sixth, former closer Jim Johnson gave the Indians their best chance to get back into the game.With a runner on first, Johnson walked three straight Cleveland batters, leaving a bases-loaded jam for Fernando Abad to clean up.Abad struck out Ryan Raburn, and the Indians never had another runner in scoring position until the ninth.Stephen Ellsesser / Special to MLB.com