Arsenal's medical team insist the illness running through the squad nothing to do with the food they have been eating.
Per Mertesacker and Olivier Giroud were unable to play in a friendly against Bayern Munich in Shanghai on Wednesday and Sead Kolasinac threw up on the pitch in the first-half and had to be replaced.
Arsene Wenger blamed it on 'food poisoning' and said Theo Walcott and Aaron Ramsey had also been unwell.
Walcott and Ramsey started on the bench against Bayern as Arsenal came from behind to draw 1-1 and then won on penalties.