Charley Davis, against the wishes of his mother, becomes a boxer. As he becomes more successful the fighter becomes surrounded by shady characters, including an unethical promoter named Roberts, who tempt the man with a number of vices. Charley finds himself faced with increasingly difficult choices.

As bare-knuckled boxing enters the modern era, brash extrovert Jim Corbett uses new rules and dazzlingly innovative footwork to rise to the top of the boxing world.

Comedy about a bandleader with hypnotic powers.

A broken-down alcoholic prizefighter struggles to keep custody of his adoring son.

Joe O'Hara finds out he has a damaged optic nerve just before a boxing match for the title. He needs the money badly, so he doesn't delay the fight. The opponent discovers Joe's weakness and pounds on his eyes, causing him to go blind.

An arrogant boxer (Pat O'Brien) discovers his wife (Glenda Farrell) had a hand in his success.

A boxer is killed in the ring, and the only clue is a tune that a man was whistling.

Unable to sign boxer Joe Louis to movie contract, Republic Pictures had to make do with the losers of Louis' heavyweight championship bouts. One of these was Billy Conn, who after being knocked out by Louis in the 13th round awakened to star in the Republic programmer The Pittsburgh Kid. The story finds clean-limned pugilist Conn (playing himself) being managed by pretty Patricia Mallory.

To save his publishing firm, a prizefighter comes out of retirement in a fixed match.

The Ritz Brothers go to the race track. They raise training end entrance money in a wrestling match and help a young man train the horse of his fiancée.

A shy songwriter (Arthur Lake) pretends to be a championship wrestler known as "The Devil" in order to impress a pretty nightclub singer (Dale Evans).

Two zany transients get jobs as vendors at a sports arena. One of them accidently knocks out one of the fighters, and must take his place, with his partner acting as referee.