Cleveland, OH -- (Sports Network) - Aaron Laffey threw seven solid innings and the Indians continued their mastery on the mound until holding on in the ninth during a 4-2 victory over the Oakland Athletics to complete a three-game sweep.

Jhonny Peralta homered and scored three times for Cleveland, which has allowed just six runs in its last seven games. Ben Francisco had three hits and an RBI for the Indians, who outscored the A's, 10-2, during the series.

Cleveland starting pitchers had gone 44 1/3 consecutive innings without giving up a run until Laffey's throwing error scored Bobby Crosby in the second. It was the first run allowed by the Indians since the sixth inning of last Friday's game against Toronto. That marked the longest streak by an Indians staff since the 1948 squad went 47 frames without giving up a run.

Laffey (2-2) allowed five hits and an unearned run, while walking one and logging six strikeouts. Jensen Lewis worked around a single to Rajai Davis in the eighth before Rafael Betancourt had trouble in the ninth. Masahide Kobayashi escaped a jam in the ninth to get his second save.

During Cleveland's 6-1 homestand, Indians starting pitchers gave up just two runs, including one earned. The starters went 6-0 with a 0.16 ERA during that span.

Because of Laffey's error, Cleveland starters haven't given up an earned run in the last 50 1/3 innings.

Greg Smith (2-3) was charged with the loss after surrendering seven hits and three runs over 4 2/3 innings. The 24-year-old lefty walked three and had seven strikeouts.

The Indians barely held on in the ninth. Jack Cust and Crosby singled with one out, and Jack Hannahan walked to load the bases. Kobayashi's wild pitch then made it 4-2, but he struck out pinch-hitters Mike Sweeney and Ryan Sweeney to end the game.

Peralta legged out an infield hit with one out in the first and scored later in the inning on Ryan Garko's double down the right field line.

Crosby and Hannahan singled to begin the second, and after Donnie Murphy struck out, Rob Bowen hit a weak grounder toward the mound. Laffey charged the ball, but threw wide of first baseman Garko with the ball sailing into right field. With runners at the corners later in the frame, Davis was caught stealing to end the inning.

The Indians regained the lead at 3-1 in the third. Grady Sizemore was hit by a pitch and Peralta walked before Francisco singled to left for an RBI. One out later, Travis Hafner singled to center to drive in Peralta.

Peralta led off the seventh with a homer to left off Santiago Casilla. Immediately after giving up the homer, Casilla was seen shaking his right arm in discomfort, and was removed from the game in favor of Chad Gaudin.

Game Notes

The A's play at Atlanta for three games this weekend, while the Indians are in Cincinnati...The 44 1/3 inning streak was the longest since the 1974 Baltimore Orioles starters went 54 frames of scoreless ball...Laffey hasn't allowed an earned run in his last 21 innings (3 starts).