Billy Joe Saunders beat Marcelo Esteban Coceres (left) last time outBilly Joe Saunders is close to finalising a deal to face boxing’s best-paid fighter Saul ‘Canelo’ Alvarez in Las Vegas on 2 May. The Briton, 30, will put his WBO world super-middleweight title on the line against Alvarez.Alvarez has one loss – to Floyd Mayweather…