Mike Yastrzemski highlighted a three-run fourth inning with a two-run double, Landen Roupp combined with three relievers on a six-hitter and the San Francisco Giants completed a three-game sweep over the visiting Atlanta Braves with a 4-3 victory Sunday afternoon.

Ryan Walker, Randy Rodriguez and Camilo Doval retired nine of the 11 men they faced over the final three scoreless innings, allowing the Giants to record a third straight one-run win over the Braves and a fifth straight overall.

The sweep was San Francisco’s first at home over the Braves since 2009.

Matt Olson drove in three runs for Atlanta, which has lost seven in a row for the second time this season.

After Olson’s RBI infield out in the first and two-run double in the third had given the Braves a 3-1 lead, the Giants seized the upper hand for good in the fourth against Atlanta starter Spencer Strider (0-5).

Inning-opening walks to Wilmer Flores and Matt Chapman set the stage for Yastrzemski’s two-out double into the right-field corner that tied the game.

Including one on a second-inning sacrifice fly, the RBIs were Yastrzemski’s first since he had a pair May 4 against the Chicago Cubs. His average had plummeted from .283 at that point to .230 before Sunday’s game, when he went 1-for-2.

The eventual difference-making run scored three pitches after Yastrzemski’s hit when Braves second baseman Ozzie Albies kicked Tyler Fitzgerald’s grounder into shallow right field, allowing Yastrzemski to race home from second.

Roupp (4-4) retained the 4-3 advantage through the sixth inning. He left having allowed three runs and five hits, with two walks and two strikeouts.

Walker and Rodriguez each struck out a pair in his scoreless inning before Doval worked around a one-out single by Albies in the ninth to record his ninth save, also recording two strikeouts.

Strider was charged with four runs (three earned) on just three hits in six innings. He walked three and struck out five.

Chapman scored twice for the Giants, who completed a 5-2 homestand in which all seven games were decided by one run. San Francisco had only three hits in the game.

Austin Riley was the only player in the contest with multiple hits – a double and a single – for the Braves, whose previous seven-game skid came in the first week of the season.