Chris Flexen pitched five scoreless innings for his first major league victory since 2017 as the Seattle Mariners defeated the visiting San Francisco Giants 4-0 Saturday night.

Ty France and Mitch Haniger hit solo home runs for the Mariners, who won two of three games in the season-opening interleague series.

Flexen (1-0), a right-hander who went 3-11 for the New York Mets between 2017-19, pitched in Korea last season before signing with Seattle as a free agent in the offseason. He allowed four hits, walked two and struck out six.

Right-hander Kendall Graveman followed Flexen and pitched two perfect innings with five strikeouts.

Lefty Anthony Misiewicz allowed two hits in the eighth, but closer Rafael Montero got Evan Longoria to line out to shortstop J.P. Crawford to end the inning. Montero retired the side in order in the ninth with one strikeout for his first save with the Mariners after being acquired in an offseason trade with Texas.

Giants right-hander Logan Webb (0-1), who allowed only one run in five spring training starts, gave up three runs on seven hits in 5 1/3 innings, with three walks and five strikeouts.

France broke a scoreless tie with a solo homer to left-center field with two outs in the bottom of the third.

The Mariners scored twice more in the fourth. Evan White led off by grounding a double into left field. Rookie Taylor Trammell followed with a line-drive double to right, his first major league hit, to score White. Dylan Moore then lined a double to left to score Trammell and make it 3-0.

Haniger, who missed half of the 2019 season and all of 2020 with injuries, led off the bottom of the seventh with a home run to left-center field off Giants right-hander Reyes Moronta. Haniger and Kyle Seager each had two hits for the Mariners.

Donovan Solano went 2-for-4 for the Giants, who totaled just six hits.

--Field Level Media