Marcus Rashford has revealed how some sage advice from his 'nanna' changed the way he played football - and set him on the road to superstardom.

As a football-mad youngster, he was obsessed with his Manchester United idols Cristiano Ronaldo and Wayne Rooney.

Rashford would spend hours watching the duo before practising his new skills around the house.

But the future England international changed the way he learned the game after listening to his grandmother's advice - about porridge.

And in his new how-to guide, You Are a Champion: How to Be the Best You can Be, the Manchester United star has passed on the wise words to a new generation of footballers.

An extract, printed exclusively in the Daily Mirror, reveals what drove him to become one of the game's most exciting players.

Rashfordwrites: "Every morning, after Nanna woke up, she would turn the kettle on, put something in the slow cooker for dinner and then start making corn- meal porridge.

"And this porridge was amazing. It takes a really long time to make properly, but it’s worth it – it’s one of the best things you will ever taste.

"This porridge was so good that whenever I had some downtime or got even a little hungry I’d be asking her if I could have some.

"And while I’d get it for breakfast, most of the time when I asked she’d tell me I couldn’t have it.

"She went weeks without explaining why she’d always say ‘no’, but one day she sat me down and told me her reasoning.

The England international has revealed his nanna's wisdom in a new book for kids

"She said, ‘If you keep asking for the same thing from the same person, you have a lot less chance of getting it. If you ask the same thing to loads of different people, you’re more likely to get what you’re asking for.’

"My nanna was always imparting life lessons when you least expected it.

"Her explanation was about more than feeding me when I was hungry, it was her way of teaching me how to problem solve.

'You Are A Champion' is written with journalist Carl Anka

"Nanna had this old Dell computer, and when I was staying with her she would let me use it to look up football clips.

"At the time I had two favourite players, Wayne Rooney and Cristiano Ronaldo, and I would watch both of them do football skills repeatedly, and then I’d practise those skills around the house.

"But after my nan told me how it’s better to ask the same thing from different people, I started to change my approach.

Marcus Rashford celebrates with his teammates during a Champions League game against PSG

"I realised that I would only learn so much by watching the same two people over and over again. I’d be better off asking the same question to lots of different footballers – not just my favourites, but ALL of the greats.

"I wanted to understand what was going through their heads, not only so I could learn from them, but also so I could learn how to beat them."

Nanna sadly passed away when Rashford was just 11-years-old, but the player still remembers his beloved relative with a ritual before every game.

Although she never got to watch her grandson play at the Theatre of Dreams, Rashford always makes the sign of the cross and points up to the heavens as a mark of respect before crossing the touchline.