Question: Benjamin Saunders (born April 13, 1983), is an American mixed martial artist who currently fights in the Welterweight division of the UFC he was on fighting on Team Serra, Matthew John Serra (born June 2, 1974) is an American former professional mixed martial artist, Brazilian Jiu-Jitsu practitioner who competed for the Ultimate Fighting Championship and which occupation?
Context: Din Yero Thomas (born September 28, 1976) is a retired American mixed martial artist who was featured on The Ultimate Fighter 4: The Comeback.  In the Ultimate Fighting Championships, Thomas is a UFC 41 Lightweight Tournament Semifinalist.  He holds a Black belt in Brazilian Jiu-Jitsu under Ricardo Liborio and currently runs two successful Brazilian Jiu-Jitsu and MMA academies in Port St. Lucie, Florida.  Thomas holds notable victories of (UFC Lightweight Champion) Jens Pulver, (UFC Welterweight Champion) Matt Serra, and (Strikeforce Lightweight Champion) Clay Guida. Jay Dee "B.J." Penn (born December 13, 1978) is an American professional mixed martial artist and Brazilian Jiu-Jitsu practitioner.  Penn debuted and competed in the Ultimate Fighting Championship (UFC), and later in K-1.  Prior to fighting for the UFC, he became the first American Gold medalist of the World Jiu-Jitsu Championship.  In mixed martial arts, Penn has competed in the Featherweight, Lightweight, Welterweight, and Middleweight divisions.  As a former UFC Lightweight Champion and UFC Welterweight Champion, he is one of only three fighters in UFC history to win titles in multiple weight classes.  Penn was also a Co-champion in the UFC 41 Lightweight Tournament, due to an eventual draw opposite Caol Uno in the tournament finale.  Through his tenures as champion, Penn unofficially unified the UFC Lightweight Championship (against Sean Sherk) and broke the all-time lightweight title defense record.  Penn was inducted into the UFC Hall of Fame, as the inaugural inductee in the Modern-Era Wing by career-long rival Matt Hughes, during "International Fight Week" in July 2015. Max "Pain" Griffin (born November 29, 1985) is an American mixed martial artist.  He was the former West Coast Fighting Championship welterweight and middleweight champion and Tachi Palace Fight welterweight champion.  He currently fights in welterweight division in the Ultimate Fighting Championship (UFC). Benjamin Saunders (born April 13, 1983), is an American mixed martial artist who currently fights in the Welterweight division of the UFC.  He was a featured fighter on "", fighting on Team Serra.  A professional competitor since 2004, Saunders has also formerly competed for Bellator. Antônio Rodrigo Nogueira (] , born June 2, 1976), better known as Minotauro, is a semi-retired Brazilian mixed martial artist known for his technical mastery of Brazilian jiu-jitsu.  He won most of his fights via submissions.  He competed in the heavyweight division of the Ultimate Fighting Championship (UFC), where he is a former Interim UFC Heavyweight Champion.  He is the twin brother of UFC fighter Antônio Rogério Nogueira.  Nogueria rose to prominence in the Japanese promotion Pride Fighting Championships, where he was the first Pride Heavyweight Champion from November 2001 to March 2003, as well as a 2004 PRIDE FC Heavyweight Grand Prix Finalist.  He is one of only three men to have held championship titles in both Pride Fighting Championships and the Ultimate Fighting Championship (the others being Mauricio Rua and Mark Coleman). Demian Augusto Maia Baptista (] born November 6, 1977) is a Brazilian mixed martial artist and Brazilian Jiu-Jitsu practitioner.  He currently fights as a welterweight for the Ultimate Fighting Championship.  As of May 20, 2017, he is #1 in the official UFC welterweight rankings.  Maia is regarded as one of the greatest grapplers in MMA history. Matthew John Serra (born June 2, 1974) is an American former professional mixed martial artist, Brazilian Jiu-Jitsu practitioner who competed for the Ultimate Fighting Championship and stand up comic.  He currently serves as a UFC on FOX analyst.  Serra defeated Pete Spratt, Shonie Carter and Chris Lytle en route to becoming The Ultimate Fighter 4 Welterweight Tournament Winner.  He captured the UFC Welterweight Championship immediately after, becoming the first of only four to win both accolades (along with Forrest Griffin, Rashad Evans, Michael Bisping).  Serra also served as the head coach for "The Ultimate Fighter 6" reality show opposite Matt Hughes.  In Brazilian Jiu-Jitsu, Serra holds a Silver Medal in the ADCC Submission Wrestling World Championship. Renzo Gracie ( ; ] ; born March 11, 1967) is a Brazilian mixed martial artist and Brazilian Jiu-Jitsu practitioner.  A member of the Gracie family of Brazil, Renzo is a 6th Degree Black in Brazilian Jiu-Jitsu under Carlos Gracie Jr..  He is the son of Robson Gracie, grandson of Carlos Gracie, nephew of Carlos Gracie, Jr. grandnephew of Helio Gracie, and the 1st cousin once removed of Royce Gracie.  In mixed martial arts, Renzo has competed in the Ultimate Fighting Championship, Pride Fighting Championships, K-1, RINGS, and International Fight League (head-coaching the New York Pitbulls).  He holds notable victories over five former UFC Champions: Frank Shamrock (UFC Light Heavyweight Champion), Carlos Newton (UFC Welterweight Champion), Pat Miletich (UFC Welterweight Champion), Maurice Smith (UFC Heavyweight Champion), and Oleg Taktarov (UFC 6 Tournament Winner) Stephen Randall Thompson (born February 11, 1983) is an American professional mixed martial artist and former professional full-contact kickboxer who currently fights as a welterweight in the Ultimate Fighting Championship.  Thompson is undefeated through 37 amateur and 57 professional kickboxing matches, with 40 wins by knockout.  He is currently #1 in official UFC welterweight rankings and ranked as the #2 welterweight in the world by Sherdog.  He has trained with former UFC Welterweight Champion Georges St-Pierre and currently trains with his brother in law, former UFC Middleweight Champion Chris Weidman. Brian "The Mantis" Camozzi (born June 24, 1991) is an American mixed martial artist.  He was the Welterweight Champion for Resurrection Fighting Alliance and Sparta Combat League.  Camozzi currently fights in Welterweight division in the Ultimate Fighting Championship (UFC).  He is the younger brother of former UFC Middleweight fighter Chris Camozzi.
Answer: stand up comic