Mets reliever sets baseball world on fire with the cockiest strikeout celebration in MLB history

You play, and then cover baseball long enough, you think you've seen it all. I've been in this game a long time.

Hand up, I thought I'd pretty much seen it all ...

... Until New York Mets reliever Jefry Yan made his MLB debut Wednesday night. I can promise you, nothing will prepare you for this.

Whatever you're envisioning in your mind, it won't come close to what actually transpired on the field.

Yan, 29, came on in the sixth inning for the first time since being called up earlier this week.