New Mets reliever Ryan Helsley brought his signature entrance to Citi Field on Friday night and dominanted in his debut.

Newly acquired Mets flamethrower Ryan Helsley made his debut in Queens during Friday’s 4-3 loss to the Giants, and the team is adopting his infamous entrance, a staple at Busch Stadium during the reliever’s tenure with the Cardinals.

The Mets are acquiring hard-throwing closer Ryan Helsley from the St. Louis Cardinals on Wednesday, a day before the July 31 Major League Baseball deadline, the team announced Wednesday. The Cardinals get back three minor leaguers: shortstop Jesus Baez and right-handed pitchers Nate Dohm and Frank Elissalt.