Joseph Bartlett Choynski (November 8, 1868 – January 24, 1943) was an American boxer who fought professionally from 1888 to 1904. As a 17lb Heavyweight his record is 59-17-6.

"Chrysanthemum Joe", the son of a Jewish Polish immigrant who settled in California in 1867, weighed no more than 176 lb (80 kg) throughout his career but regularly fought heavyweights. He was considered a heavy puncher and a dangerous fighter.

In fact, James J. Jeffries claimed that the hardest blow he ever received in a bout came from Choynski during their 20-round draw. During that bout, Choynski hit Jeffries with a right hand so powerful that the punch drove one of Jeffries' teeth into his lip. The tooth was lodged so deeply that one of Jeffries' cornermen was forced to cut it out with a knife between rounds.

A contemporary of heavyweight champion "Gentleman Jim" (James J. Corbett), the two fought professionally three times. Both were from the San Francisco area, and thus generated a lot of local interest in their rivalry. The highlight of their series of bouts was fought on June 5, 1889, on a barge off the coast of Benicia, California.

The principals agreed that the bout was to be fought wearing two ounce gloves. Corbett had apparently hurt his hand, and Choynski learned of the injury. Accordingly, Choynski "forgot" to bring his gloves to the match, thereby hoping the fight would proceed as a bare-knuckle bout. 

Corbett, however, declined to fight bare-knuckle, but agreed to allow Choynski to wear leather riding gloves borrowed from a spectator. The riding gloves were seamed, and caused Corbett to suffer many cuts and welts. Nevertheless, Corbett won the legendary bout when he KOed Choynski in the 27th round.

In 1892 he KOd a 39-year-old legend in Boston's George Godfrey.

Choynski was never given an opportunity to fight for the heavyweight title, but enjoyed some stunning successes against famed heavyweights James J. Jeffries and Jack Johnson before they became champions. 

For example, he held the heavier, larger, and stronger Jeffries to a 20-round draw on November 30, 1892. On February 25, 1901, he faced and KO'ed the young Jack Johnson in three rounds. He then began to train Johnson, helping the younger man develop the style that enabled him to become world champion.

Choynski also fought six-round draws with two other men who later claimed the heavyweight championship of the world: Bob Fitzsimmons on June 17, 1894, and Marvin Hart on November 16, 1903.

The 1910 T220 Mecca “Champion Athlete and Prize Fighters” series consists of 50 cards. Each piece measures 2-1/2” by 3-5/16.” (Although the title references champion athletes, only boxers are represented). Card fronts display remarkably lifelike artistic renderings of a pugilist or fight scene, framed with a blank border and his name in dark type near the bottom. 

The back has the card title, a biographical block of text, and the Mecca Cigarettes brand name resting at the bottom of the card. (Some cards have been found with an advertisement for Tolstoi cigarettes). This popular set, which also had many cards also issued with a silver border variation, includes a variation to Joe Coburn, printed both with and without a man to his left. 

The set is anchored by such ring legends as James J. Corbett, Jack Dempsey, Joe Gans, James J. Jeffries, Jack Sharkey, and John L. Sullivan. These items, owing to their soft paper stock, are almost impossible to find in high grade.