Phil Kessel gets scared to death in hilarious Halloween prank.

Fans of the National Hockey League were treated to a special Halloween treat on Friday when one player released a video of a prank he pulled on one of the league's biggest names. 

Pittsburgh Penguins veteran Ryan Reeves used the help of a very ugly looking mask to scare the living hell out his teammate, Pittsburgh Penguins star forward Phil Kessel and it worked like a charm. 

In fact it may have worked too well because Kessel looked like he was on the verge of going into cardiac arrest after having the life spooked out of him by the prank from Reeves. 

Here's the video.