Question: Neven Pajkić, is a Canadian heavyweight boxer, his undefeated run came to an end when he lost to which British professional boxer, on which date, after the referee stopped the fight in the third round?

Context paragraphs:
Tyson Fury: Tyson Luke Fury (born 12 August 1988) is a British professional boxer.  He has held the "Ring" magazine heavyweight title since 2015, after defeating long-reigning world champion Wladimir Klitschko.  In the same fight, Fury also won the unified WBA (Super), IBF, WBO, IBO and lineal titles, with the victory earning him Fighter of the Year and Upset of the Year awards by "The Ring".  Fury was subsequently stripped of the IBF title later that year for being unable to grant a fight against their mandatory challenger, Vyacheslav Glazkov, due to agreeing to a rematch with Klitschko.  In 2016, Fury vacated the WBA, WBO, IBO, and lineal titles following an ongoing medical investigation and personal issues and two cancellations of the Klitschko rematch.  In August 2016, Fury was ranked by BoxRec as the world's sixth best active boxer, pound for pound.

Oscar Gómez (boxer): Oscar Edegardo Gómez (born July 21, 1975) is a retired male light-middleweight boxer from Argentina, who represented his native country at the 1996 Summer Olympics in Atlanta, Georgia.  There he was defeated in the first round of the men's light-middleweight division (– 71 kg) by Uzbekistan's eventual bronze medalist Karim Tulaganov after the referee stopped the contest in the third round.

Cassius Clay vs. Billy Daniels: Cassius Clay (soon Muhammad Ali) fought Billy Daniels in a ten-round boxing match at St. Nicholas Arena in New York City on May 19, 1962.  Clay won the fight through a technical knockout when the referee stopped the fight in the seventh round.The fight featured a series of clinches and calls of "break" from the referee.Daniels was ahead on points when the referee stopped the fight after a cut opened above Daniels' left eyebrow.Both Daniels and Clay had been undefeated up till this bout.

Samir El-Mais: Samir El-Mais (born 10 September 1980), nicknamed "Sweet Sammy", is an Abu Dhabi-born Canadian heavyweight boxer from Windsor, Ontario.  Relatively unknown, El Mais captured the Canadian Heavyweight Championship on February 24, 2010 defeating Shavar Henry 9-4 in Halifax, Nova Scotia.  He competed at the 2010 Commonwealth Games in the heavyweight division where he won his first bout against Kevin Evans of Wales and eventually lost in his quarter-final bout to Stephen Simmons of Scotland.

George Godfrey (boxer born 1853): George Godfrey (20 March 1853 – 17 October 1901), nicknamed "Old Chocolate" by the press of the day in the last stage of his long career, was a Black Canadian heavyweight boxer who held the distinction of being World 'Colored' Heavyweight Champion during his career.  He is not to be confused with the American heavyweight George Godfrey who claimed the same Championship 42 years after his Canadian namesake.  Godfrey was inducted into the PEI Sports Hall of Fame in 1990.

Neven Pajkić: Neven Pajkić (, born 25 August 1977) is a Canadian heavyweight boxer.  His professional debut was on 18 November 2005 against Sheldon Hinton.  On 4 February 2011 he won the vacant NABA Canada heavyweight title in a match against Johnnie White.  His undefeated run came to an end when he lost to Tyson Fury on 12 November 2011 after the referee stopped the fight in the third round.

George Chuvalo: George Louis Chuvalo, CM (born September 12, 1937) is a retired Canadian professional boxer who was a five-time Canadian heavyweight champion, and two-time world heavyweight title challenger.  Chuvalo, who is considered by many to have one of the best chins in boxing history, was never knocked down in his amateur career or his 93-fight professional career and was ranked #4 on ESPN's greatest chin in boxing history list.  Chuvalo lost to Hall of Fame heavyweights such as Floyd Patterson, Muhammad Ali, Joe Frazier and George Foreman, but was credited for his spirited performances.  He did defeat top contenders such as Yvon Durelle, Doug Jones, Jerry Quarry and Cleveland Williams.  He fought for the world title twice, losing a controversial decision to Ernie Terrell and another decision in his first fight with Ali.

Rufat Riskiyev: Rufat Asadovich Riskiyev (Russian: Руфат Асадович Рискиев ) (born October 2, 1949 in Tashkent, Uzbek SSR) is a retired boxer, who represented the USSR at the 1976 Summer Olympics in Montreal, Canada.  There he won the silver medal in the middleweight division (– 75 kg).  In the final he was defeated by United States-boxer Michael Spinks, after the referee stopped the contest in the third round.

Leavander Johnson: Johnson made his debut as a professional boxer in 1989 following a successful amateur career, during which he fought in over 130 contests.  As a professional he quickly built on his reputation as a top prospect by remaining undefeated after his first 22 contests (one of which was drawn).  His next fight was against another highly rated youngster, Sharmba Mitchell (who was also undefeated as a professional).  Johnson won the fight, earning himself his first world title shot, by knocking his opponent out in the eighth round.  The world title fight came on August 6, 1994 against Miguel Ángel González for the WBC Lightweight crown.  The fight, which was fought in Ciudad Juárez, Mexico, ended with Johnson suffering his first loss as a professional, the fight being stopped in the eighth round

Elmer Ray: Elmer "Kid Violent" Ray (March 3, 1911 – May 20, 1987) was an American heavyweight boxer who fought from 1926 to 1949.  He was born in Federal Point, Florida.  Ray was known as a hard puncher and had a career record of 86 (with 70 knockouts)-13-1.  Ray never fought for the title, but did fight future heavyweight champions Ezzard Charles and Jersey Joe Walcott.  In three fights with Walcott, Ray suffered a three round knockout on September 25, 1937, rebounded to outpoint Walcott on November 15, 1946, and lost the third fight by decision (April 3, 1947).  He defeated Charles on a split decision on July 25, 1947, but was knocked out in the 9th round of their rematch on May 7, 1948.  He also boxed light heavyweight champion John Henry Lewis, but was stopped in the 12th round on May 19, 1938.  In 2003, Ray made the Ring Magazine's list of 100 greatest punchers of all-time at number 44.

Supporting paragraphs: Neven Pajkić Tyson Fury
Answer: 12 November 2011