San Francisco Giants' Lee Jung-hoo watches his home run against the Athletics during the second inning of a baseball game in San Francisco, Tuesday (local time). AP-Yonhap

Lee Jung-hoo has hit his fifth home run of the season for the San Francisco Giants.

The Korean outfielder stuffed the box score in the Giants' 3-1 win over the Athletics at Oracle Park in San Francisco on Tuesday (local time). Lee batted 2-for-3 with an RBI, a run, a walk and a steal.

Lee raised his batting average to .331, the second-best mark in Major League Baseball behind Otto Lopez of the Miami Marlins, who is hitting .337.

Lee blasted a solo home run in his first at-bat in the bottom of the second inning. Lee drove a middle-middle cutter from starter Aaron Civale 414 feet over the right-center field fence. It was the longest home run of his career.