Striker Fernando Torres insists Liverpool boss Rafael Benitez played a crucial role in inspiring his goalscoring exploits at Euro 2008.
The 24-year-old, who netted 33 goals in his debut season at Anfield, hit the winner as Spain beat Germany 1-0 in the European Championship final last week.
And Torres said: "There are days when you think: 'My God, this guy (Benitez) doesn't let you breathe.
"It's good as you need someone close to you, telling you to keep at it."
Torres' impressive haul last season broke Ruud van Nistelrooy's record for goals scored by a foreigner in a debut Premier League campaign
And he said that Benitez's relentless quest for improvement since he joined from Atletico Madrid for �26.5m has been a catalyst for his career.
Torres added: "At a club like Liverpool, you can't sit back after scoring 20-odd goals and say: 'well, that's it.'
"After you score 20, Benitez is at you during the next training session and stays on top of you all day, all week.
"He tells you to go off on your own and do new exercises. I want to progress in life, not relax, not be complacent.
"It is impossible to do it otherwise. We don't always fancy someone that close but, in the long term, I am sure that everybody will thank him for it."
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