Robert Lewandowski showed off his ‘rock’ body in the gym

Lewandowski remains a top forward even at the age of 34 as a result

And many fans were left in awe at the Polish international’s insane physique.

Taking to Instagram, one fan declared: “Body like a rock 😵.”

A second fan said: “Such a machine.”

A third commented: “Robocop 🔥🙌.”

The 34-year-old has a peculiar “backwards diet”, whereby he eats his dessert FIRST.

Lewandowski believes it not only helps him to burn fat faster but it also makes him more energetic too.

While still at Bayern Munich he said: “They still don’t understand.

“They shake their heads when they see me finishing with some soup.”

His wife, Anna, has also lifted the lid on his nutrition plan, which includes a ban on lactose.

Speaking in 2019, she said: “The most important thing is training and nutrition.

“We refrain from lactose and wheat flour. It’s about quality food.

“Pancakes, brownies, vegetable spaghetti, porridge or millet. We also like to eat high-quality fish.

“Sometimes after training we drink beetroot juice with cinnamon or cayenne pepper.

“When we mix many foods at once, sometimes we aren’t doing the right thing.

“We feel bloated, have to loosen our trousers. The mix is ​​too much for our body.”