Chelsea icon Marcel Desailly feels Fernando Torres' form problems are due to injury.
Torres insists he is now free of any lingering injuries going into the new season.
Desailly told the Daily Mail: "It's a real physical problem. You could see it during the World Cup. You have to be confident when you play for Spain: the movement; the passes. Spain are the perfect team for a striker. Physically he was not at the level.
"He moved to Chelsea but mentally he was not confident. It started as a physical problem but ended up being a confidence problem. You realise you're not capable of the same sort of effort you were before.
"At Atletico Madrid he looked like a killer, and even three years ago at Liverpool he reminded me of Marco van Basten. He had the biggest potential of anyone in Europe.
"He was the complete player. He could head the ball, left foot, right foot, speed, great first touch. He was like Van Basten. That's why he's the key. Chelsea's offensive focus has to switch completely to Torres.
"It will come. The guy is 27, the talent is still there and he's not scared about the Premier League, he doesn't need to adapt to the speed or skill of the Premier League. He still has the pace."
