Mac Danzig is an American mixed martial artist, who competed as a lightweight in several MMA promotions, most notably the Ultimate Fighting Championship. He was the winner of The Ultimate Fighter season six.

The Ultimate Fighter: Team Hughes vs. Team Serra was the sixth season of the Ultimate Fighting Championship (UFC) produced reality television series The Ultimate Fighter, and premiered on September 19, 2007, on Spike TV, after UFC Fight Night 11. This season featured only welterweight fighters. The teams were coached by current UFC welterweight champion Matt Serra and former welterweight champion Matt Hughes. The coaches were to fight for the welterweight title after the completion of the show, on December 29 at UFC 79. However, due to an injury sustained by Serra, Hughes instead faced former welterweight champion Georges St-Pierre for the interim title, with St-Pierre defeating Hughes by submission in the second round and going on to challenge Serra for the undisputed welterweight title at UFC 83.