France right back Bacary Sagna said teammate Antoine Griezmann now belonged to the same elite club as the Portugal forward.
"Ronaldo, we know him. He's one of the best players in the world -- if not the best -- and he has worked very hard to get there," Sagna told a news conference on Saturday.
"Antoine, to me, is right up there too, in the same league as Ronaldo and Lionel Messi."
Griezmann, who left for Spain as a teenager after being turned down by French academies because he was regarded as not being big enough, matured to become one of the world's most dangerous strikers.
"It's a kind of revenge for him after the French academies wouldn't take him," Sagna said.
"He made it the hard way and he deserves to be where he is."
Griezmann, who steered Atletico Madrid to the Champions League final this season, has scored six goals so far in the tournament, more than any player since France's Michel Platini hit a record nine at the 1984 finals.
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