Liverpool defender Mamadou Sakho lived up to his billing as a player of supreme power during his medical with the club, as the summer acquisition from Paris Saint-Germain broke a fitness machine while being assessed by the club's medical staff.

The 23-year-old joined the Reds from the French champions for a fee of £17 million to reinforce the defensive options available to manager Brendan Rodgers.

Rodgers has already described his France international as a 'monster' due to his sizable frame, and it has now been revealed that the club's cardiovascular machines were no match for Sakho during his Liverpool medical.

The story started out as a rumour among Liverpool fans, but Sakho has now confirmed that some repair work was required while Anfield doctors gave him the once over.

He told reporters: "How do you know this? Yes, it’s true!

"It’s true that one of the machines did break. Something went wrong with it, so they had to fix it, not reinforce it.

"Strength is one of my attributes and I want to continue developing my strength as it is a key part of my game.

"I’m a defender and I need to use that, but I need to fill out more and bulk up to progress."

Sakho made his debut for Liverpool in the 2-2 draw with Swansea City on Monday, while he played the full 90 minutes as the Reds fell to their first defeat of the season against Southampton.

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