Heavyweights Prep For Friday's Match

INDIANAPOLIS, April 27--Their heavy-weight title fight only four days off, Champion Floyd Patterson and challenger Brian London honed themselves to a fine training edge in drills yesterday.

The lithe Patterson sparred three rounds, two against Ike Thomas and one against Cuban Julios Mederos.

London, working out in Municipal Gardens while Patterson drilled in the Fairgrounds Coliseum where the fight will be held Friday night, sparred three rounds with Dusty Rhodes.