Answer the question at the end by quoting:

Norton was an outstanding athlete at Jacksonville High School. He was selected to the all-state team Football team on defense as a senior in 1960. His track coach entered him in eight events, and Norton placed first in seven of them. As a result, the "Ken Norton Rule", which limits participation of an athlete to a maximum of four track and field events, was instituted in Illinois high school sports.
'Name' opponents were elusive in Norton's early career. His first big break came with a clear win over respected contender Henry Clark. This helped get him his world recognition break when Ali agreed to a match. Joe Frazier, who'd sparred with Norton, presciently said of Ali, "He'll have plenty of trouble!" Though both were top boxers in the mid 1970s, Norton and Frazier never fought each other, in part because they shared the same trainer, Eddie Futch, and also that they were friends. For the first match, on March 31, 1973, Muhammad Ali entered the ring at the San Diego Sports Arena wearing a robe given to him by Elvis Presley as a 5-1 favorite versus Ken Norton, then rated a number 6 world contender in a bout televised by ABC's Wide World of Sports. Norton won a 12-round split decision over Ali in his adopted hometown of San Diego to win the NABF heavyweight title. In this bout, Norton broke Ali's jaw (he maintains in round eleven, though Angelo Dundee said it was earlier), leading to only the second defeat for "The Greatest" in his career. (Ali's only previous loss was to Joe Frazier, and Ali would later go on to defeat George Foreman to regain the heavyweight title in 1974.) Almost six months later at The Forum in Inglewood, California, on September 10, 1973, Ali avenged the Norton loss but only after he got the return by a split decision. Norton weighed in at 205 lbs (5 pounds lighter than his first match with Ali) and boxing scribes discussed that his preparation was too intense and that perhaps he had overtrained. There were some furious exchanges in this hard-fought battle. From Ali's point of view, a loss here would have seriously dented his claim of ever being "The Greatest." During the ABC broadcast of the fight, broadcaster (and Ali confidant and friend) Howard Cosell repeatedly told viewers a dancing and jabbing Ali was dominating the action despite Norton's constant offense and Ali's inability to penetrate Norton's awkward defensive style. The close and controversial scoring was in stark contrast to Cosell's fight-long insistence that Ali had matters well in hand.

Is Ali referring to Mohammed Ali?

Ali,

Answer the question at the end by quoting:

George Edward Foreman (born January 10, 1949) is an American former professional boxer who competed from 1969 to 1977, and from 1987 to 1997. Nicknamed "Big George", he is a two-time world heavyweight champion and an Olympic gold medalist. Outside the sport he is an ordained minister, author, and entrepreneur. After a troubled childhood Foreman took up amateur boxing and won a gold medal in the heavyweight division at the 1968 Summer Olympics.
In 1972, still undefeated and with an impressive knockout record, Foreman was set to challenge undefeated and Undisputed World Heavyweight Champion Joe Frazier. Despite boycotting a title elimination caused by the vacancy resulting from the championship being stripped from Muhammad Ali, Frazier had won the title from Jimmy Ellis and defended his title four times since, including a 15-round unanimous decision over the previously unbeaten Ali in 1971 after Ali had beaten Oscar Bonavena and Jerry Quarry. Despite Foreman's superior size and reach, he was not expected to beat Frazier and was a 3:1 underdog going into the fight. The Sunshine Showdown took place on January 22, 1973, in Kingston, Jamaica, with Foreman dominating the fight to win the championship by technical knockout. In ABC's re-broadcast, Howard Cosell made the memorable call, "Down goes Frazier! Down goes Frazier! Down goes Frazier!" Before the fight Frazier was 29-0 (25 KO) and Foreman was 37-0 (34 KO). Frazier was knocked down six times by Foreman within two rounds (the three-knockdown rule was not in effect for this bout). After the second knockdown, Frazier's balance and mobility were impaired to the extent that he was unable to evade Foreman's combinations. Frazier managed to get to his feet for all six knockdowns, but referee Arthur Mercante eventually called an end to the one-sided bout. Foreman was sometimes characterized by the media as an aloof and antisocial champion. According to them, he always seemed to wear a sneer and was not often available to the press. Foreman later attributed his demeanor during this time as an emulation of Sonny Liston, for whom he had been an occasional sparring partner. Foreman defended his title successfully twice during his initial reign as champion. His first defense, in Tokyo, pitted him against Puerto Rican Heavyweight Champion Jose Roman. Roman was not regarded as a top contender, and it took Foreman only 2 minutes to end the fight, one of the fastest knockouts in a Heavyweight Championship bout.

In what round did he win?
Frazier was knocked down six times by Foreman within two rounds