Ajax will be forced to head to Midtjylland with only 17 players after seeing their squad decimated by a coronavirus outbreak.
Erik ten Hag is facing a selection crisis ahead of his side's latest Champions League outing in Denmark on Tuesday.
Ajax will be looking for their first Champions League win of the season when they take on Midtjylland, having lost 1-0 at home to Liverpool before being held to a 2-2 draw by Atalanta in Italy.
However, Ten Hag's usual 23-man squad has been reduced by six, amid reports that 11 players from the first and second team have tested positive for Covid-19.