Juventus' Cristiano Ronaldo celebrates at the end of the Champions League round of 16, 2nd leg, soccer match between Juventus and Atletico Madrid at the Allianz stadium in Turin, Italy, March 12, 2019. (ANTONIO CALANNI / AP)

WARSAW — The Polish goalkeeper of Juventus FC Wojciech Szczesny praised his teammate Cristiano Ronaldo as the Portuguese "is obsessed with winning and he thinks just about work, even on trainings".

On Friday the Pole was asked by the Polish TV Eleven Sports to compare Cristiano Ronaldo to Szczesny's compatriot Robert Lewandowski from Bayern Munich.

Cristiano has an egoist face on the pitch and I think that face makes him one of the best players in football history

Wojciech Szczesny, The Polish goalkeeper of Juventus FC

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"I think Cristiano is more focused on work. There are jokes before and during the training. He is a machine. Lewandowski is a little more relaxed. I don't compare who works more, but who is obsessed with this work. It's definitely Cristiano," said Juventus custodian.

"Cristiano has an egoist face on the pitch and I think that face makes him one of the best players in football history. It sometimes makes him look frustrated and thus looks selfish. It's just an obsession with winning, an obsession with being the best and requiring others to help him. It would be unhealthy if there were six, seven or ten people with such a character in the dressing room, but one that pushes others to be better is positive," added Szczesny.

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Seria A competition has been still suspended due to the coronavirus outbreak. All Juventus players were quarantined after Blaise Matuidi, Daniele Rugani and Paolo Dybala were all tested positive for COVID-19.

"My health is very good. I came back to the country, so I'm in the quarantine with my family. It was hard in Italy because I was alone. Since I am at home I have not been bored," claimed Szczesny.