"Morrissey & the Russian Sailor" is a well known prize fighting song (trad Irish usually). There's also a song about Heenan & Sayers.

Isn't there one about the Benicia Boy?

And John Connolly (of Fiddler's Green fame) wrote a song about a prize fight. Maybe someone will remember that - I can't bring it to mind at the moment.

Not very useful, am I? But maybe it'll stir someone's memory.