According to The Sun, Mourinho said he never thought about retirement and might still coach in his 70s. The "Special One" also referenced old rival Guardiola, stating he would never take a sabbatical.

Mourinho, 63, returned to Real Madrid this summer for his second spell, having signed a three-year contract.

However, the Portuguese coach revealed in his new documentary "Mourinho" that he remains highly motivated.

Mourinho said in the documentary: "I can't even imagine when I will stop my football career."

"I'm talking about another 10 years, maybe more than 10 years. Football is fun, it was, it is, and it always will be fun."

"I want to win more titles. I want to win new titles. I want to repeat winning titles."

"I want to do it in places I've never been, and I also want to do it again in places I've been before."

"My world is walking into a stadium with 50,000 or 90,000 fans. I've faced 100,000 fans. That's my world."

"Without football, my life is incomplete."

"But I don't think it's an obsession, and I don't treat it as an obsession."

"It's just that once you reach a certain level, you want to stay there forever."

Mourinho has been a head coach since managing Benfica in 2000.

The new documentary chronicles his rise since then, including a successful three-year spell at Real Madrid from 2010 to 2013.

During that period, Mourinho frequently clashed with Guardiola, who was then managing Barcelona.

Guardiola took a sabbatical after leaving Barcelona in 2012, taking over Bayern Munich a year later.

But Mourinho vowed not to do the same, believing that taking time away from coaching is a sign of weakness.

He said: "Some people need sabbaticals – I hate that very much, I hate that word."

"For me, a sabbatical means weakness. Don't talk to me about sabbaticals."

"I never need a break. I'll only rest when he (Mourinho points to the sky) decides to say 'Come up'."

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