The 23-year-old clashed heads with Groningen's Tim Handwerker just before the break and was taken to hospital.
Hirving Lozano, 23, has scored 11 goals in 18 games for PSV Eindhoven and Carlo Ancelotti says he is on a list of potential targets.
A Barcelona delegation went to Amsterdam this week in an attempt to persuade Ajax midfielder Frenkie de Jong to sign, sources have told ESPN FC.
Paris Saint-Germain are increasingly optimistic that they will beat Barcelona and Manchester City to the signing of Ajax midfielder Frenkie de Jong.
Frenkie de Jong has said he will stay with the Eredivisie side until at least the summer and hopes his teammates do the same.
A turnip truck which carries Robben's name on its trips from the municipal's fields into the city centre has seen a huge level of support.
Ajax's Matthijs de Ligt won the European Golden Boy award on Monday, while Frenkie de Jong has been heavily linked with a move to PSG.
The 2018 Golden Boy featured defenders Matthijs De Ligt of Ajax and Trent Alexander-Arnold of Liverpool at the top of the list.
Former United player Blind and Morocco midfielder Ziyech ran riot after De Graafschap's Daryl van Mieghem had failed to take a one-on-one chance.
Frenkie de Jong has been heavily linked with a move to PSG in recent days, but said that he will not leave Ajax during the January window.
Former Netherlands captain Arjen Robben, 34, said at the weekend that this would be his final season at Bayern after 10 years.
Robin van Persie spent eight years at Arsenal, winning an FA Cup, before joining Manchester United and helping clinch a Premier League title.
Mark van Bommel retired from PSV a legend. Now, in his role as first-team boss, the former midfielder is driving the club to even greater heights.
|SC Heracles Almelo||21||9||2||10||-8||29|
|Willem II Tilburg||21||7||4||10||-7||25|
|ADO Den Haag||21||6||6||9||-12||24|
|FC Emmen VV||21||6||6||9||-20||24|