Ronaldo is one of only three players in history to have scored at four separate World Cups, having done so in 2006, 2010, 2014, and 2018.
The other two are Germany greats Miroslav Klose and Uwe Seeler.
Should Ronaldo, who is facing legal action from Manchester United over his comments about the club in a recent interview with Piers Morgan, find the net in Qatar, he'll become the first player ever to score at five World Cups.