It is easy to forget some Manchester United icons who achieved superstardom started out functioning in very different positions and Cristiano Ronaldo's return has perfectly illustrated how those at the top of the sport can evolve their game. The penalty-box predator we see now is quite removed from the tricky winger who first arrived from Sporting Club in Lisbon.
Paul Scholes broke into the senior side as a centre-forward and another all-time great in Ryan Giggs matured into a central midfield orchestrator when age ensured he was less of the jet-heeled left winger than when he made his name.