Lauzon made his World Series of Fighting debut against UFC vet John Gunderson at WSOF 3 on June 14, 2013 headlined by former UFC vets Josh Burkman and Jon Fitch.
Jon Corzine | Jon Stewart | Abercrombie & Fitch | Jon Pertwee | Jon Anderson | Jon Voight | Jon Krakauer | Jon | Jon English | Jon Bon Jovi | Jon Vickers | Jon Lord | Jon Langford | Jon Brion | Jon Huntsman, Jr. | Jon Faddis | Jon Tester | Jon Ronson | Jon Fishman | Uli Jon Roth | Jon Foreman | Jon Hendricks | Jon Fosse | Clyde Fitch | Jon St. James | Jon Spencer Blues Explosion | Jon Postel | Jon Lovitz | Jon Lech Johansen | Jon Lebkowsky |
Welterweight Diego Sanchez returned after his decision loss at UFC 69 to Josh Koscheck when he faced Jon Fitch, a training partner of Koscheck and a former Purdue University wrestler who was in the midst of a thirteen-fight win streak.
A welterweight matchup between Jon Fitch and Akihiro Gono was originally scheduled, but Gono was forced to withdraw after suffering a hand injury in training.