"I want to return to top form and be the player I was before. I have lots of goals left to score for Madrid and many aims yet to achieve.
"I still have a Champions League yet to win and I will give everything to win it.
He top-scored in the 2006-07 season with 25 goals in 37 games and is the second top-scorer in the Champions League with 60 goals.
Real, the reigning Spanish champions, are currently fourth in La Liga but crashed out of the Spanish Cup on Tuesday, losing to third division side Real Union on away goals after drawing 6-6 over the two legs.
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