FLUSHING, NY – He wouldn’t be a Met closer without a little controversy and on Billy Wagner’s first day at Shea, things were shaken up a bit.

Only this time, it was about a song.

Throughout his career, Wagner used the Metallica anthem “Enter Sandman” as his closing music, but the problem here is the Yankees’ Mariano Rivera also has the tune for his warm up throws.

“I know Mariano’s got it and Lord forbid, two people’s got it,” Wagner said. “It’s how she crumbles.”

Well, not according to WFAN’s Mike Francessa and Chris Russo, who proceeded to rip the Mets and Wagner for daring to use the song and infringe on Yankee turf.

The problem with Mike and the Mad Dog’s argument is that Wagner has been using the song his whole career, when Jeff Bagwell picked the song for him. And since he started closing for the Houston Astros in 1996 – a year before Rivera did with the Yankees – why should the new Mets closer have to change music because he’s now in New York?

Or as Wagner said: “I play for the Mets and he plays for the Yankees. I never have to face him and he never has to face me.” Precisely.

And think about this. Closers are rather fragile creatures, who go through the same routines every single day. If Wagner, who says he is a nervous wreck before he comes into games, is forced to change his entrance tune, then wouldn’t that mess with the guy’s head?

Why would the Mets want that to happen?

If Francessa and Russo have a problem with Wagner’s song, then they should have a problem with the Yankees using “New York, New York,” because the Mets used that song for their wins back in the 1980s and they should have a problem with “God Bless America,” since it was played long before at Philadelphia Flyers games.

Maybe, they should have analyzed the game on the field, which would have made for better discussion, rather than going into a trivial matter like this.