The Astros signing Josh Hader has turned into potential help for the Yankees bullpen.

The Yankees have claimed lefty reliever Matt Gage off waivers from the Astros, The Post’s Jon Heyman reported on Monday.

Gage had been designated for assignment last week to make room for Hader, who signed a five-year, $95 million contract, on the Astros’ roster.

The Yankees will have to open a spot for Gage on their own 40-man roster for the move to become official.

Gage, a 30-year-old out of upstate New York (Johnstown) and Siena College, has posted a 1.83 ERA across 16 major league appearances with the Astros and Blue Jays.

He has one minor league option remaining, increasing his value as an arm that could shuttle between the Yankees and Triple-A as needed.

The waiver claim also gives the Yankees another left-handed reliever on their 40-man roster, joining Victor Gonzalez, Nick Ramirez and Matt Krook – further insurance if they do not bring back lefty reliever Wandy Peralta in free agency.

Originally drafted by the Giants in 2014 as a starting pitcher, Gage left affiliated ball to pitch in the Mexican League in 2019 and an independent league in 2020 before coming back as a reliever in the Diamondbacks’ system in 2021.

He made his MLB debut with the Blue Jays in 2022 and then split 2023 between the Astros and their Triple-A affiliate, where he pitched to a 4.58 ERA across 34 appearances.