Cristiano Ronaldo and Lionel Messi could become team-mates in a stunning move this summer. Ronaldo, 40, is out of contract at Al-Nassr this summer and is widely expected to sign a new deal, but their failure to qualify for the Club World Cup this summer has opened the door to a short-term deal.

Lionel Messi and Cristiano Ronaldo have dominated football for the past two decades. With the pair claiming 13 of the past 16 Ballons d'Or, the sport has never before been gripped by such a rivalry between two players.