SAN FRANCISCO — The San Francisco Giants will have two Northern California natives joining the roster on Sunday.

Left-hander Conner Menez will make his major league debut as the Giants’ starting pitcher in their series finale against the Mets and he’ll reportedly be joined in San Francisco by corner infielder Zach Green.

Giants manager Bruce Bochy announced the team’s plan to add Menez to the roster and insert him into the starting rotation prior to Saturday’s loss against the Mets. NBC Sports Bay Area reported postgame that Green, the Sacramento River Cats’ home run leader, will also be activated on Sunday.

Menez is a Hollister, Calif. native who was selected by the Giants in the 14th round of the 2016 MLB Draft out of the Master’s College. Green grew up east of Sacramento in Carmichael, Calif. and signed as a minor league free agent with the Giants this offseason.

The Giants won’t make any official announcements regarding transactions until Sunday, but the club must clear a pair of 25-man roster spots and add both Menez and Green to the 40-man roster.

Pitcher Ty Blach who appeared out of the bullpen in Saturday’s blowout loss is a candidate to be optioned to Sacramento after allowing seven hits in three innings.

Menez began his season with Double-A Richmond before earning a promotion to Triple-A Sacramento in early June. The left-hander has posted a 3.13 ERA across two levels this season and has struck out 123 batters in 95 innings.

Green had only appeared in 37 minor league games above Double-A before signing with the Giants this winter, but began the season at Triple-A and has hit 23 home runs in 64 games.

Bochy said Menez will take the spot of Drew Pomeranz in the rotation as Pomeranz will work out of the bullpen for the foreseeable future.

Green figures to receive most of his playing time at third base due to Evan Longoria’s injury absence. Longoria has been sidelined since last weekend and is expected to miss around two weeks with a strain of the plantar fascia in his left foot.

Bochy previously said infielders Pablo Sandoval and Donovan Solano would serve as the primary fill-ins for Longoria, but Green gives the Giants a right-handed power option.

Green was a high school teammate of Phillies slugger Rhys Hoskins at Jesuit while Menez attended San Benito High in Hollister.

Green was selected out of high school in the third round of the 2012 draft by the Phillies.