Watch as Dion Waiters throws the hammer down in OT

Cavs acting general manager David Griffin said he wants to see the team smile more.

This play probably did the trick for the guys on the court - and the fans at home.

All Marc Gasol and Zach Randolph can do is watch the monster dunk -- there's no stopping Dion with a full head of steam.

And just in case you want a couple more angles.

Cavs head coach Mike Brown called the dunk "huge."

Understatement?