Question: Paulino Uzcudun and  Max Schmeling both fought which boxer?

Context paragraphs:
Knockout (1935 film): Knockout (German complete title: "Knockout - Ein Junges Mädchen, ein Junger Mann") is a 1935 German sports film directed by Carl Lamac and Hans H. Zerlett and starring Anny Ondra, Max Schmeling and Hans Schönrath.  After impressing a boxing trainer during a brawl over a woman, a young man is recruited and trained to be a boxer.  He fights and defeats the British champion.

Max Schmeling: Maximillian Adolph Otto Siegfried "Max" Schmeling (] ; 28 September 1905 – 2 February 2005) was a German boxer who was heavyweight champion of the world between 1930 and 1932.  His two fights with Joe Louis in 1936 and 1938 were worldwide cultural events because of their national associations.

Schwergewicht: Schwergewicht, oder Die Ehre der Nation ("Heavyweight or The Glory of The Nation") is a "burleske Operette" with text and music by Ernst Krenek, his Op.  55 and (with "Der Diktator" and "Das geheime Königreich") the third of his 1928 one-acters.  This satirical skit (as the composer was to call it in "Horizons Circled") was provoked by the German ambassador's comment that sports heroes – and not artists – were the true ambassadors of nations, and the title character Ochsenschwanz ("oxtail") is a reference to the boxer Max Schmeling.

Max Schmeling (film): Max Schmeling is a 2010 German biographical film directed by Uwe Boll.  The film tells the story of German boxing icon Max Schmeling.  It was released abroad under the title "Max Schmeling: Fist of the Reich."

Love in the Ring: Love in the Ring (German:Liebe im Ring) is a 1930 German sports film directed by Reinhold Schünzel and starring Max Schmeling, Renate Müller and Olga Tschechowa.  Schmeling was a leading German boxer of the 1930s, and the film attempted to capitalise on this.  Schmeling later appeared in another boxing-themed film in "Knockout" (1935).

Joe Louis vs. Max Schmeling: Joe Louis vs. Max Schmeling refers to two separate fights between the two which are among boxing's most talked about bouts.  Schmeling won the first match by a knockout in round twelve, but in the second match, Louis won through a knockout in the first round.  Although the two champions met to create a pugilistic spectacle remarkable on its own terms, the two fights came to embody the broader political and social conflict of the times.  As the most significant African American athlete of his age and the most significant African-American boxer since Jack Johnson, Louis was a focal point for African American pride in the 1930s.  Moreover, as a contest between representatives of the United States and Nazi Germany during the 1930s, the fights came to symbolize the struggle between democracy and fascism.  Louis' performance in the bouts made him one of the first true African American national heroes in the United States.

Billy Gibson (boxing): William J. Gibson (1876–1947) was a boxing promoter and manager for Benny Leonard (a former Lightweight champion), Gene Tunney (a former Heavyweight champion), Paulino Uzcudun, and featherweight Louis Kaplan.  He was also the owner of the short-lived New York Brickley Giants of the National Football League.  Gibson began his career in boxing as a promoter in Bronx.  He teamed up with Leonard in 1914 and was his manager up until the 1917 lightweight championship.  In 1923, Gibson became the manager of Tunney, who would go on to win the heavyweight title.  Gibson retired in 1928.

Javier Mora (boxer): Javier Mora (born May 25, 1981 in Encarnacion de Diaz, Jalisco, Mexico) is a Mexican boxer in the Heavyweight division.  He was defeated by Alexander Povetkin by a 5-round TKO, in Max Schmeling Halle, Prenzlauer Berg, Berlin, Germany.

Max-Schmeling-Halle: Max-Schmeling-Halle is a multi-purpose arena, in Berlin, Germany, named after the famous German boxer Max Schmeling.  Apart from the Velodrom, it's one of Berlin's biggest indoor sports arenas and holds from 8,861 people, up to 11,000 people.

Paulino Uzcudun: Paulino Uzcudun Eizmendi (3 May 1899 – 5 July 1985) was a Basque heavyweight boxer, who is considered to be the greatest heavyweight from Spain.  Uzkudun is the Basque spelling of his last name.  He was the youngest of 9 siblings.  In his youth, he became an aizkolari or traditional competitive Basque wood chopper.  Uzcudun, known as "Paulino" in the United States, was the European heavyweight champion, and he fought heavyweight champions Joe Louis, Max Baer, Max Schmeling (three times) and Primo Carnera (twice) during his career.  The former butcher—nicknamed "the Basque woodchopper"—retired from boxing with a record of 50 wins (34 KOs), 17 losses and 3 draws.

Supporting paragraphs: Paulino Uzcudun Max Schmeling
Answer: Joe Louis