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.

Coming into the summer, improving the bullpen was a significant need for the Mets, and it has been one that was addressed and then some. New York started by acquiring left-hander Gregory Soto from the Baltimore Orioles to give them a solid southpaw out of the bullpen,