Brad Marchand gets up close and personal with Clayton Keller.

If you're playing against the Boston Bruins you have to be aware of every time notorious Bruins agitator Brad Marchand sets foot out onto the ice, and on Saturday night young Arizona Coyotes star Clayton Keller got some personal tutoring when it comes to learning that lesson.

Marchand has earned a reputation as one of the most annoying, and quite frankly one of the most hated, players in the entire National Hockey League and at this point I think anyone would be hard pressed to argue otherwise. That doesn't mean he's a bad person, Marchand for example has often shown his softer side while doing wonderful things in his community, it does mean that you want your head to be on a swivel when you're playing against him.

On Saturday night Keller was his target, and for good reasons. The young Coyotes forward amassed 4 shots on goal throughout the game and was a thorn in the side of the Bruins, including picking up a very important goal in the second period that would help the Coyotes keep things interesting despite eventually falling to the Bruins by a score of 3 - 2.

Although Marchand stopped short of licking Keller, something he has shown a willingness to do in the past, he did get up close and personal with the 23 year old forward. With only 6 minutes left on the game clock Marchand grabbed Keller after knocking him off of the puck in something of a headlock, and proceeded to whisper sweet nothings in his ear, the content of which we can only guess. I can't imagine Keller was too fond of having Marchand so uncomfortably close to his face, especially not with the very real risk of having Marchand's nose poke him in the eye, but to his credit he did a great job of appearing to be unbothered by the antics that we have all come to expect from the Bruins notorious pest.

Although Marchand was kept off the score sheet in this one he still found a way to have an impact on the game, and that is what has made him such a polarizing and valuable player for the Bruins.

Here's a look at how it all went down: