There are so many stories highlighting Cristiano Ronaldo's innate drive and determination to the best and a new one comes from his cousin.
CR7 won his first ever Champions League with Manchester United in 2008 on penalties in Moscow, with Edwin van der Sar the hero against Chelsea when he saved from Nicolas Anelka to crown Sir Alex Ferguson's side the champions of Europe for the third time.
Ronaldo scored a stunning header to open the scoring but missed his spot-kick in the shoot-out victory and thought he had cost his team.
And according to Nuno Viveiros, even though the Sporting CP youth product was overjoyed at becoming a European champion, he didn't feel the need to party. Instead, he trained after getting back to Manchester.
"I lived with Cristiano in Manchester for five years, an unforgettable experience," he revealed in an interview with Tuttosport.
"The night when the team won the Champions League in 2008. Do you remember the final of Moscow with Chelsea that ended on penalties? Terry slides into the right post of the goal and at the end van der Sar saves Anelka's shot.
"Do you know what Cristiano did when we got back to Manchester that night? He went to train. He went to train after becoming a champion. European Champion at the age of twenty-three, he is like that, he's a real son of Madeira."
Utterly ridiculous. Ronaldo is just obsessed with perfection and even at 33 is still striving for improvement.
So much so, Ronaldo's ex-fitness coach Giovanni Mauri says he partakes in 2 a.m gym sessions after a long away day in the Champions League.
"Cristiano is a phenomenon and an elite level athlete," Mauri explained to Tuttosport.
"He always trains to the best possible level because his way of working is comprised of three things: dedication, competitiveness and a positive attitude.
"We are talking about a world class player who, when we returned home at 2am from a Champions League away match, would not jet off home in his car.
"No, he would stop at the training centre for at least an hour for various recovery exercises and cryotherapy."