Manchester United manager Jose Mourinho believes that Barcelona star Lionel Messi and Real Madrid ace Cristiano Ronaldo have their last chance to win a world Cup this year.
Both of them have multiple honours for their clubs but none have lifted the World Cup.
"They both arrive at this World Cup probably as the last one," Mourinho said on Thursday.
"It would be the pinnacle of their careers.
“They have tried to give the best of themselves to their countries.
Asked if this was their last chance to win the World Cup, the Portuguese said: "Cristiano is a superman. He can [play at another World Cup] if he wants.
"But four more years at the highest level? To come back to the next World Cup I feel it will be hard.
"Of course Lionel is younger and he can perfectly be in the next World Cup in four years time.
"But I would also think that to play every week - two or three matches per week for Barcelona and Real Madrid in La Liga, Champions League, national team - I think to resist to all of that and four years later to come to the highest level is hard.
"They're both going to try to finish their careers with the only thing they don't have."
Both players appear at their fourth World Cup finals.