Juan Mata, Daley Blind and Ander Herrera also celebrated the victory

City striker Duggan uploaded the snap to Instagram of her with Van Gaal

Van Gaal was snapped with City's Toni Duggan and Isobel Christiansen

Louis van Gaal celebrated his derby demolition in style on Sunday night as he was snapped with Manchester City women's players Toni Duggan and Isobel Christiansen in a restaurant.

Duggan uploaded a photograph on Instagram of her, Christiansen and Everton's Michelle Hinnigan at Wing's Chinese restaurant following United's 4-2 win against their great rivals City, and wrote: 'Heyyy Louis van G!!!! Nice to share a wings with you...... [sic].' Duggan later deleted the post.

Duggan has since removed the photo from Instagram and issued an apology on Facebook. Her apology read: 'I would like to apologise to all MCFC fans for the error of judgement I made last night.

'I now appreciate the significance of my actions and can assure everyone connected with Manchester City that I am proud to represent the Club and wear the shirt.'

Wing's is the go-to place for footballers in Manchester, with England and United captain Wayne Rooney among its regulars, but the only City stars in sight were Duggan and Christiansen.

Louis van Gaal pictured with Manchester City women's players Toni Duggan (left) and Isobel Christiansen (far right), while they were joined by Everton's Michelle Hinnigan at Wing's restaurant

Manchester United manager Louis van Gaal leaves Wing's restaurant after celebrating the win with friends

Van Gaal was at the go-to restaurant for footballers and celebrities with his wife Truss and friends

The group seemed in high spirits after United's 4-2 humiliation of their neighbours City at Old Trafford

Van Gaal embraces Mr Wing following the meal at his restaurant as the United manager celebrated in style

Van Gaal gets ready to leave... and he may not worry too much about being given a ticket after the derby win

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Goals from Ashley Young, Marouane Fellaini, Juan Mata and Chris Smalling won United the bragging rights, while Sergio Aguero scored twice for the visitors in the eighth and 89th minutes.

The red half of Manchester were given reason to celebrate as they moved four points clear of their noisy neighbours in the Barclays Premier League, and Van Gaal decided to let his hair down.

Asked how he planned to celebrate at his post-match press conference, Van Gaal said: 'I can go to Mr Wing's because when you win you can go.

'When you lose then the fans are saying, "what is Mr Louis van Gaal doing? Losing and he goes to the best restaurant of Manchester?" Now I can go. Maybe I shall go.'

Ander Herrera (left) and Juan Mata hit the town to celebrate the win against their great rivals City

Daley Blind is snapped leaving Wing's restaurant on Sunday evening after celebrating the derby win

Duggan was snapped with a few more United legends last week with Phil and Gary Neville, and Paul Scholes

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He did just that and was joined by his wife Truus with friends from Holland at the five-star Chinese restaurant in the city centre.

Van Gaal described humiliating City as the 'best feeling' he had since moving to Old Trafford, and added: 'This week they [the players and supporters] can go on the streets, heads up and say: "We are the better team because goal average (over the two derbies) is in our favour."'

It seems United's players followed his advice as Ander Herrera, Mata and Daley Blind were spotted painting the town red, too.

They won't be able to celebrate for too long, however, as United must prepare to visit the Premier League's runaway leaders Chelsea. Van Gaal goes up against Jose Mourinho at Stamford Bridge this Saturday, and will try to throw a spanner in the works as Chelsea aim to seal the title.

Duggan of City (centre) tries to fend off two Sunderland markers during a match earlier this month

City's 23-year-old forward Christiansen pictured playing for the Etihad outfit previously

Wing's is the go-to place for footballers but the only City stars in sight were Duggan and Christiansen (above)

Hinnigan (left) of Everton passes the ball during a match between the Merseyside club and Notts County