Manchester United have reportedly been unhappy with David de Gea's form since he signed a new long-term deal and could sell the Spaniard during this summer's transfer window.
The 29-year-old has been one of the best goalkeepers in the Premier League over the last few years but his form has dipped over the last 12 months or so.
De Gea penned a new long-term contract at Old Trafford last September, but according to journalist Duncan Castles, the Red Devils 'have not been happy' with his performances this season.
Castles claims that the 20-time English champions would even be open to selling the Spain international this summer if a club came up with a suitable offer.
"United are not happy with the performance of De Gea post-signing that record contract," Castles said on the Transfer Window Podcast. "They basically put themselves in the position where they had to pay him far, far more money than any other club was prepared to pay him. So they've saddled themselves."
"It's a hugely expensive contract for a player whose performances have declined since he signed that contract. My understanding is that there's a thought within the camp that were someone to offer De Gea a contract and the opportunity to move elsewhere the strategic thing to do would be to take that wage off their wage bill and sell him."
English stopper Dean Henderson, who has excelled on loan at Sheffield United in the Premier League this season, is due to return to Old Trafford ahead of the 2020-21 campaign.
