Bayern have enjoyed great success since the Bundesliga restarted.

The German giants saw off Union Berlin 2-0 in their first game back, before smashing five goals past Frankfurt.

Their third game since the league resumed was a crucial top-of-the-table clash against Borussia Dortmund.

And Bayern narrowly managed to overcome their fierce rivals at Signal Iduna Park.

Joshua Kimmich scored the only goal of the game in the first-half - a sumptuous dink that deceived Roman Bürki and found the back of the net.

Bayern have been rather impressive and Leon Goretzka has been a big part of their success.

He's played all but 20 minutes in their three games since the league restarted.

But it's not his performances that have attracted the most attention from football fans. It's his image.

He has undergone a crazy body transformation since he signed for Bayern in 2018.

This was an image of Goretzka last season:

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This is an image of Goretzka in February:

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And this is an image of Goretzka in action for Bayern a few days ago:

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What a monster. We promise that's not photoshopped.

Goretzka has certainly been in the weight room in the past season and over lockdown.

He looks a completely different person. His arms have pretty much doubled in size.

Fans have been commenting on his transformation.

@AAZchelsea said: "Yo, this Goretzka’s transformation is just crazy. He clearly didn't waste any time during the lockdown."

"Proud to say I’ve lived long enough to see Leon Goretzka transform into Javi Martinez," @lehm_FCB commented.

While @FiMorty said: "When did this happen?! Leon Goretzka’s been banging the fish and a ricecake diet... Geeza went from “hey beautiful” to “new phone who dis”.

If Goretzka keeps it up, he might turn into The Hulk by the end of the year.