“"Undisputed heavyweight champion." Well, if it's undisputed, what's all the fighting about?”

Quotations by 60 Greatest Indians, Dhirubhai Ambani Institute of Information and Communication Technology http://resourcecentre.daiict.ac.in/eresources/iresources/quotations.html,

As quoted in "Sport: Larry Holmes: I Still Have It" by Tom Callahan in TIME (21 June 1982).

After knocking out Jersey Joe Walcott to capture the heavyweight crown, as quoted in "Remembering the Brockton Blockbuster", by Thomas Hauser, in The New York Sun (14 September 2005) http://www.nysun.com/article/19989?page_no=2

Trainer Ray Arcelhttp://coxscorner.tripod.com/jdempsey.html

Statement of (3 February 1906) after his win against Marvin Hart, as quoted in a profile of Jack Johnson, at Unforgivable Blackness at PBS (2005) http://www.pbs.org/unforgivableblackness/sparring/rise.html.

Speech in Leeds (23 November 1900), quoted in The Times (24 November 1900), p. 8
Opposition MP

Police Gazette Oct 13, 1900. Walcott issued challenges to Tom Sharkey, Gus Ruhlin and even champion Jim Jeffies, though they all declined.

Baltimore Evening Sun (4 April 1927)
1920s

February 25, 1964, calling the victory of Cassius Clay (who would later change his name to Muhammad Ali) over Sonny Liston.