The pair played together at Inter Milan.
"So I earned my licence and said to Sam that I want to buy a car," the Austrian told the Daily Mail, "and Sam replied: 'Don't bother, you can have one of mine'.
"He gave me a Bentley and I was very happy with that. I was driving into the city every day and was getting it washed all the time and keeping it nice.
"One day I went to the restaurant for 45 minutes. After I'd finished the car was not there and at first I thought it had been removed for bad parking. I was shocked, I was crying and throwing up, I was really scared.
"I called Sam and told him the car had been taken but I have to say he was really nice to me.
"He said it wasn't my fault but I was calling him day and night to say sorry. I must have called him 100 times. When I went to Bremen I got a call to say they had found the car.
"I was worried Eto'o thought I might have asked somebody to take it for me so that was a big relief. When I see him at Chelsea this season we will have a laugh about it - I hope!"
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