Van de Beek has struggled to establish himself since moving to United in a £35m move in September 2020.

The Dutchman had a loan spell at Everton and spent the second half of last season at Eintracht Frankfurt.

It is understood Girona will pay a minimal initial fee, with further add-ons that could total £16.9m (20m euros) in the unlikely event they are all met.

United will also have a large sell-on clause.

The 26-year-old will join the Bundesliga side for the rest of the season, with an option to turn the transfer into a permanent deal.

Van de Beek has made just six Premier League starts for United since signing from Ajax for £35m in September 2020.

Manager Erik ten Hag said recently the Netherlands international needed a move to revive his career.

It is understood Eintracht will pay United a loan fee and are covering the majority of his wages.

Should they want to make the deal permanent, the fee is set at 11m euros (£9.5m), with an additional 3m euros (£2.6m) in add-ons.

Van de Beek has made 62 appearances for United across all competitions, scoring twice.

He had a loan spell at Everton in 2022 before returning to United and missed the second half of last season with a serious knee injury.

Eintracht are sixth in the German Bundesliga table, nine points off the top four, and are in the Europa Conference League play-offs.

The Bundesliga is on its winter break and Eintracht’s next match is at RB Leipzig on 13 January.

Van de Beek has made just six Premier League starts since joining United from Ajax for £35m in September 2020.

Manager Erik ten Hag said recently the Netherlands international needed a move to revive his career.

It is understood Eintracht will pay a loan fee for the 26-year-old.

Before United played Newcastle earlier this month, Ten Hag said: “I can see he has to play for his career and for everything.”

Van de Beek has made 62 appearances for United across all competitions, scoring twice.

The 25-year-old Netherlands international last played for the club in a win against Bournemouth on 3 January.

He was taken off near the end of the first half of that game.

“On the long term it is looking really good, he will be back for the start of pre-season,” said United manager Erik ten Hag.

“The rest of the season he is out.”

Van de Beek joined United from Ajax for £35m, plus £5m in add-ons, on a five-year contract in 2020.

“I think everyone’s thoughts are with him,” added Ten Hag. “It is terrible when you are in a season and you get a bad tackle, a bad injury.

“It is always really disappointing and thoughts, feelings are with the player. You express that, our group did that really well, and we are now happy his knee in the long term is good.

“In the same moments, mixed feelings. Disappointment he is out of this season.

“The players are feeling we are building something good and we want to be part of it and everyone wants to be part of it.”

United face local rivals Manchester City on Saturday (12:30 GMT).

Ten Hag said the club are “close” to completing the loan signing of Netherlands forward Wout Weghorst from Burnley but that the 30-year-old will “not be available” to face City.

Weghorst spent the first half of the season at Besiktas on loan from Burnley but is now set to join the Old Trafford club.

Frank de Boer, the head coach, will not be calling up a replacement for the tournament, which starts for the Netherlands on Sunday against Ukraine.

The Netherlands broke the news on Tuesday morning in a post on Twitter, which read: “Van de Beek has to let the European Championship pass by. The midfielder is struggling with an injury.

“As a result, he is not available in time for EURO 2020. Frank de Boer will not call a replacement for Van de Beek.”

Van de Beek, who was signed by United from Ajax last summer for an initial fee in the region of £35m, made just four Premier League starts in a frustrating first season in England.

His United teammate Marcus Rashford shared a message of support for Van de Beek on Tuesday.

The England forward’s tweet read: “Sorry mate, take some time for yourself and keep your head high.”

The Euro 2020 will be aired on all Multimedia radio and television platforms.