Question: Matt Alan Veach (born May 31, 1981) is an American mixed martial arts fighter, known for his 3 fight stint in the UFC, including his "Fight of the Night" performance against which former UFC Lightweight Champion, who's the  American mixed martial artist who competes as a Featherweight in the Ultimate Fighting Championship and is a former UFC Lightweight Champion, born on October 16, 1981?

Context articles: B.J. Penn
Anthony Pettis
The Ultimate Fighter 5
Jens Pulver
Frankie Edgar
KHK MMA
Caol Uno
Matt Veach
Conor McGregor
Sean Sherk

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.
Anthony Paul Pettis (born January 27, 1987) is an American mixed martial artist currently competing as a Lightweight in the Ultimate Fighting Championship (UFC), where he is the former UFC Lightweight Champion.
 Pettis was also the final WEC Lightweight Champion prior to the promotion being merged into the UFC.
 At one point, he was ranked as a top-ten pound for pound fighter.
 He is currently ranked #13 in the official UFC lightweight rankings.
The Ultimate Fighter 5 was the fifth season of the Ultimate Fighting Championship produced reality television series "The Ultimate Fighter".
 As with the show's usual format, sixteen prospective mixed martial arts fighters were secluded in a house near Las Vegas, Nevada and trained together while participating in a single-elimination tournament, with the winner being awarded a six-figure UFC contract.
 This season featured only one weight class, lightweights (146–155 lb) and the fighters were divided into two teams; one coached by former UFC Lightweight Champion Jens Pulver and the other by former UFC Welterweight Champion and former lightweight champion B.J. Penn.
 The season was well-known among fans for the large number of fighters kicked off of the show.
Jens Johnnie Pulver (born December 6, 1974) is an American professional mixed martial artist and undefeated boxer and kickboxer.
 Pulver was the inaugural UFC Lightweight Champion in addition to serving as the head coach on "The Ultimate Fighter 5" reality show against long-time rival B.J. Penn.
 In mixed martial arts, Pulver competed at the Lightweight, Featherweight, Bantamweight and Flyweight divisions in addition to competing at the Middleweight, Light Middleweight, and Welterweight divisions as a professional boxer.
 While perhaps best known for competing in the UFC, Pulver has also competed in Pride Fighting Championships, for the PRIDE 2005 Lightweight Grand Prix.
 He is to-date the youngest UFC Lightweight Champion in the UFC history, eventually relinquishing his title, after two defenses, due to a contract dispute.
 Pulver officially retired from combat sports in 2014.
 Pulver is considered the founder of the UFC lightweight division.
Frank James Edgar (born October 16, 1981) is an American mixed martial artist who competes as a Featherweight in the Ultimate Fighting Championship and is a former UFC Lightweight Champion.
 He holds notable victories over former world champions Sean Sherk, Hermes França, B.J. Penn (x3), Urijah Faber as well as top featherweight contender Chad Mendes.
 As of June 5, 2017, Edgar is ranked as the #2 featherweight fighter.
The Khalid Bin Hamad Al Khalifa Mixed Martial Arts (KHK MMA) is a martial arts organization based in Bahrain.
 It was founded under the patronage of His Highness Khalid bin Hamad Al Khalifa for its current CEO and professional MMA fighter Mohammed "The Hawk" Shahid in February 2015.
 Fighters competing under KHK MMA banner include: former UFC lightweight champion Frankie Edgar, UFC lightweight contender Khabib Nurmagomedov, UFC lightweight fighter Islam Makhachev, Bellator fighter James Gallagher, 2-time IMMAF champion Jose "Shorty" Torres, former UFC fighter and current Titan FC contender Alex Soto, and current Desert Force fighter Hamza Kooheji.
 KHK MMA activities include: coaching pro fighters, developing amateur MMA, promoting martial arts events, fitness gyms, and a sports gear brand.
Kaoru "Caol" Uno (宇野薫 , Uno Kaoru ) (born May 8, 1975) is a Japanese mixed martial artist.
 He is the Co-Champion of the UFC 41 Lightweight Tournament and a former Shooto Lightweight Champion.
 As one of the early Ultimate Fighting Championship's elite Lightweight competitors, Uno competed for the UFC Lightweight Championship on two separate occasions.
 Despite falling short in both championship bouts; losing a five-round decision against Jens Pulver at UFC 30, to determine the inaugural UFC Lightweight Champion as well as a draw against B.J. Penn at UFC 41 (in a bout which would have determined the new UFC Lightweight Champion and UFC 41 Lightweight Tournament Winner), Uno is acknowledged as a pioneer for his impact and influence during the early era of the UFC Lightweight Division.
Matt Alan Veach (born May 31, 1981) is an American mixed martial arts fighter.
 He is known for his 3 fight stint in the UFC, including his "Fight of the Night" performance against former UFC Lightweight Champion Frankie Edgar.
Conor Anthony McGregor (Irish: "Conchúr Antóin Mac Gréagóir" ; born 14 July 1988) is an Irish professional mixed martial artist and professional boxer who is currently signed to the Ultimate Fighting Championship (UFC).
 He is the reigning UFC Lightweight Champion, and former UFC Featherweight Champion.
 During his mixed martial arts (MMA) career, McGregor has competed as a featherweight, lightweight, and welterweight.
 As of 2017, McGregor is ranked 2nd on UFC's pound for pound rankings.
Sean Keith Sherk (born August 5, 1973) is a retired American mixed martial artist and former UFC Lightweight Champion.
 Sherk competed in the Ultimate Fighting Championship and was one of the first combatants to have been a championship competitor in multiple weight divisions (having also competed for the UFC Welterweight Championship).
 He was the second UFC Lightweight Champion in the organization's history after Jens Pulver vacated his title 5 years earlier.
 Sherk also spent time competing in the Japan-based organizations, PRIDE Fighting Championships and Pancrase; going undefeated in both promotions.
 He holds one of the longest undefeated streaks in mixed martial arts history, with only four career losses, all to fellow-UFC Champions.
 Sherk announced his official retirement from mixed martial arts competition in September 2013 having last fought three years prior.