Mourinho indicated that Eto'o was one of his favourite players and suggested he would be given many more chances at Chelsea.
"My favourite players are the players that win matches for me, not the ones that lose matches for me," he said.
"Samuel worked with me in the best season of my career. We won everything. So he's in a good position."
Mourinho added: "He was for two years playing without big motivations and when you play without big motivations, you train without big motivations and you lose condition, and you lose sharpness, and you lose even appetite.
"It was not a surprise for me that he arrived here not in the best conditions after two years in Anzhi (Makhachkala).
"Now step by step he is going. He is 32 but he's a fit, slim guy.
"He's not a heavy body. He's intelligent, of course, and I think goals give confidence."
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