5. Brandon Vera: His best known fight was an upset of Frank Mir, but Vera made his mark on the WEC's heavyweight division early in his career. He scored a TKO over Mike Whitehead and knocked out Andre Mussi at WEC 13.
4. Nick Diaz: Before Stockton's finest fought in the UFC and then became the Strikeforce champ, a young Diaz fought at WEC 6. Sharing the card with future opponent Frank Shamrock, Diaz submitted Joe Hurley with a kimura in less than two minutes.
3. Shane Carwin: The UFC heavyweight contender made his MMA debut in the WEC, scoring a submission by strikes over Carlton Jones at WEC 17.
2. Frank Shamrock: In between his bouts with the UFC and EliteXC/Strikeforce, Shamrock took his submission magic to the WEC. Fighting on WEC 6 in 2003, Shamrock armbarred Bryan Pardoe in under two minutes.
1. Dan Severn: The UFC Hall-of-Famer also holds a special place in WEC history. As the main event on the WEC's first card in 2001, Severn beat Travis Fulton -- the man with more than 250 fights under his belt -- in a decision.
- Frank Shamrock
- Nick Diaz