Joe Louis discusses defeat of Jack Sharkey

The transcript describes a scenario involving a character at an airport, dealing with a Marvel Crowding fighter. The character recounts their actions, including going out to get someone and dealing with a third knockdown. The conversation shifts to future plans, including a rematch with Melon.

What does the speaker mean by 'the ropes were after I had him hung up'?

What is the significance of the rematch with Melon mentioned in the dialogue?