Cristiano Ronaldo's insatiable desire to win trophies has remained throughout his career, according to former Portugal star Rui Costa, who claims he has never seen a more hungry champion.
Costa played alongside Ronaldo in the 2004 European Championships when Portugal lost in the final to Greece on home soil.
The playmaker spent the majority of his career in Serie A with Fiorentina and AC Milan before retiring in 2008, and he is now sporting director at Benfica.
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Portugal will take on Ukraine in their opening European Championship qualifying game as Fernando Santos' side begin the defence of their title after Ronaldo eventually lifted the trophy in 2016.