Manchester City forward Toni Duggan has apologised to fans after posting a photo with Manchester United manager Louis van Gaal on Instagram. The 23-year-old shared an image of her with the United boss at Wing's restaurant on Sunday night after United's 4-2 win over City at Old Trafford. Duggan received a number of abusive messages on social media for the photo, and has since removed it from Instagram. Toni Duggan (left) posted this picture on Instagram of her with Manchester United manager Louis van Gaal . The Manchester City forward issued an apology on her Facebook page and removed the photo . The England international also issued an apology on her Facebook page on Monday. It 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.' Duggan pictured in action for Manchester City during a Women's Super League match earlier this month . The 23-year-old Duggan joined Man City in 2013 after spending the early part of her career with Everton . Born in Liverpool, Duggan joined Manchester City in 2013 after spending the early part of her career at Everton. Van Gaal was enjoying a celebratory meal at his favourite restaurant in the city after his Manchester United side beat Manchester City to move four points ahead of them in the Premier League.
Toni Duggan posted a photo to Instagram of her with Louis van Gaal .
Van Gaal was enjoying celebratory meal after United's 4-2 derby win .
Manchester City player Duggan apologised and removed the photo .