Chelsea slammed for first 'mind-blowing' mistake of Poch era as midfielder Mason Mount joins Manchester United

[Paul Merson image] Chelsea have already made a "mind-blowing" mistake by allowing midfielder Mason Mount to join Manchester United, according to former player Paul Merson.

Mount, who has just over a year left on his Chelsea contract, has reportedly attracted interest from Liverpool and Arsenal, but it is United who look set to win the race for his signature.

The player's desire for parity with Chelsea's top earners has led to the player's departure, despite Pochettino being reportedly keen on keeping him at the club.

"I cannot believe Chelsea are letting Mason Mount go," Merson told Sky Sports.

"He's one of their own, and last season he was one of the best players at the club.

They're judging it just on one season." "They'll bring someone in who will need time to adjust to the league, and United will benefit from this.

It's mind-blowing." Merson also warned that letting Mount go to a club that could potentially haunt Chelsea in their fight for a top-four finish could be a costly mistake.

The player's move to United could also have implications for Chelsea's other players, who may be less inclined to sign new contracts if they feel they are not being valued by the club.

"They're letting a very good footballer go to a club that could majorly haunt them," Merson said.

"If they're not careful, they'll let other players go and then you're in trouble." Despite the error, Chelsea are said to be willing to let Mount leave on a free transfer next summer, rather than paying what they believe to be an inflated transfer fee.

This move could prove to be a costly mistake for the club, with the player's value set to rise as he gains more experience and becomes an integral part of the United squad.

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