Anthony Joshua is following Sir Alex Ferguson's route to glory after winning Joseph Parker unification fight

Left: Anthony Joshua after winning the fight against Joseph Parker (Right). [Photo: Courtesy]

Sir Alex Ferguson was the same — the champagne bubbles had not burst on celebrating one Manchester United success before he focused on the next.

All serial winners have that ­relentless attitude, be it Roger Federer’s quest for another Slam or Lewis Hamilton’s refusal to be satisfied with four F1 world titles. Anthony Joshua has it, too.