The Prince of Broadway (1926)

"The Prince of Broadway" George Burke, heavyweight boxing champion of the world, trains by drinking and dancing all night. After he is knocked out, his manager tears up his contract and tells him he is through. His sweetheart, actress Nancy Lee rescues him from the gutter and asks her admirer, Wade Turner to take him to his ranch to get back in shape. Wade, jealous of George, tells his foreman, Buck Marshall, to hinder George's comeback. Wade’s neighbor, former champ Jim Jeffries offers to help George get back into condition. Trying for the advantage Wade tells Nancy that George is not training, but when she goes out to the ranch, she uncovers the conspiracy. George regains the championship and wins Nancy's hand.