Video: Brock Lesnar vs. Alistair Overeem Trailer

On December 30th, two of the most devastating heavyweight fighters in MMA history will go face to face at UFC 141, when former UFC heavyweight champion Brock Lesnar returns to the octagon and goes to war with former Strikeforce heavyweight champion Alistair Overeem.

Check out the first video trailer for UFC 141, which takes place on Saturday, December 30th, 2011 from Las Vegas, Nevada: