Mac Williamson remade his swing during the offseason to become a more consistent power hitter. He added a leg kick, lowered his hands, found better balance all in an effort to keep the bat in the zone longer and give himself more room for error.

Whatever he did, it’s working. He crushed a ball into the wind.shop nfl jerseys online

Williamson hit a two-run homer deep into the right-center field seats in the sixth, Buster Posey had a double and singled in the fifth to put San Francisco ahead, and the Giants beat the Washington Nationals 4-2 on Monday night.

”I just haven’t seen many balls hit there even in BP,” manager Bruce Bochy said. ”With the wind blowing, that’s impressive. It shows you how strong this guy is.”

Chris Stratton (2-1) struck out five over 6 2/3 innings, allowing two runs and four hits.

Williamson, playing his first home game at AT&T Park this season after being called up during the recent road trip, connected with a deep drive to right-center off Shawn Kelley after he relieved starter Gio Gonzalez (2-2).

”It’s a long ways out there. The wind, it’s always circling,” Williamson said. ”I played fair share of games in right so I know that balls don’t always go out there very well.”

Gonzalez walked Brandon Belt to end his day before Williamson crushed the first pitch he saw from Kelley.

Then, Kelley had to exit the game for what the Nationals said afterward was an irritated ulnar collateral ligament. He has had a history of elbow trouble and will be re-evaluated Tuesday.

The 464-foot shot by Williamson is the furthest homer by the Giants this year, wholesale nfl jerseys china topping his previous 434-foot homer Friday after he was promoted to face the Angels in Anaheim. Earlier Monday, Williamson drove in his team’s initial run on a fielder’s choice in the fourth.

San Francisco kicked off a 10-game homestand by winning back-to-back games for only the second time this season and first since April 4-7. The Giants were coming off their first series victory of the season against the Angels.