By FOX Sports staff
The Cameroon international was once quoted as saying he would "rather sell groundnuts" in his village than play for a Chelsea side under the controversial Mourinho.
However, that was before Eto'o played under the Portuguese tactician at Inter Milan, where they won the treble of Serie A, the Coppa Italia and the UEFA Champions League during the 2009/10 season.
And having been reunited with his former boss after moving to Stamford Bridge from Anzhi Makhachkala, Eto'o reveals he is delighted to have rekindled their partnership.
"I was talking about Jose - not Chelsea," he told The Sun, when asked about his previous comments about never wanting to play for the Blues.
"Before meeting at Inter, we didn't know each other personally, so our relationship was tense. I even said one time that I'd never play for a club where Jose was coach.
"But God knows best. He wanted to show me that I was wrong and today Jose is a friend [and] now he's my coach again.
"It's a real pleasure to team up with him once more and join a great team. Jose has a real clear idea.
"He talks straight and it's really important in this business. He's sincere and straightforward."
Eto'o also claimed he did not need much convincing when the chance to work with "one of the best" managers arose.
"When it comes to Jose, I can't pick out only one quality because he's as good on the pitch as off it and this is rare for a manager," he added. "He's one of the best.
"He got in touch. I realised there was an opportunity at Chelsea - and things moved very fast."
Prior to joining Inter, Eto'o enjoyed several successful seasons with Barcelona and won three La Liga titles, two Copa del Reys and two Champions League crowns.