Rob Lee told ‘The 32’ he believes Cristiano Ronaldo can easily play until he’s 40.
Former Premier League legend Lee, 52, was asked if Ronaldo, playing at his fourth World Cup, is now ‘unstoppable’.
He replied: ‘I think so.
‘I was very lucky to play with some great players – Alan Shearer was one, and his goal record was one-in-two, which made him known as a great striker.
‘Ronaldo and Messi get one-in-one. He wants to play until he’s 40, and if you look at him, he probably will.
‘He’s had no major injuries, he doesn’t look like he’s going to get injured and he’s just a phenomenal player.
SLIDESHOW: The 32 star players for every World Cup nation (Click image below)
‘He’s the best I’ve ever seen.’
Portugal face Iran in their final Group B fixture, and are on course for the last 16 having picked up four points.
Ronaldo meanwhile, broke his latest record when his strike against Morocco made him Europe’s all-time leading scorer, ahead of Ferenc Puskas.