Goal machine Erling Haalan reveals the secret of his success – special specs to help him sleep

GOAL-grabbing Erling Haaland has revealed the secret of his success — special specs to help him sleep.

They filter out blue light from gadgets and the harsh glow from lamps and fridges.

The Manchester City striker, 22, who has scored 14 times already this season, puts them on in the hours before turning in to ensure he gets better quality kip.

The £51million star also avoids electronic devices two hours before bed.

Norwegian Erling said: “I wear these glasses in the evening. They help me get deeper and better sleep.

“I see this as key to improving performance by even just a few percentages. It’s a matter of mentality.”

Haaland joined City from Borussia Dortmund in June.

The striker eats a mountain of food a day to stay in peak condition.

He demolishes plates of chicken and pasta cooked without salt or oil and grub like swordfish, sea bass and sea bream - all cooked with veg.

And he also mainly drinks water and avoids sugary snacks and frozen food, opting to eat fresh produce only.

While at German giants Borussia Dortmund he gained 12 kilos of muscle in 15 months – and once split a punch bag.

"His body responds so well to training because his genetics are privileged," former trainer Erase Steenslid revealed.

“He gained 12 kilos of muscle in 15 months. It was crazy. We built his muscle from scratch. He was always the closest to the buffet and his plate was literally a mountain of food.

“I designed a circuit for him where at one of the stations he had to hit a sack… and one day he split it in half."