Daniel Farke says he will make late decisions on a number of players ahead of Norwich City's trip to Rotherham United on Saturday.
A number of City's players endured a busy international break and only returned to first-team training on Friday. Therefore, Farke says he will leave his team selection for the game against the Millers until the last minute.
"In general, it seems for me a little bit tricky that the players have to fly around even more than normal," he said at his pre-match press conference.
"I totally respect the neccesities of the national teams but I find it strange how they fly around for friendlies. Five of my players were away until Thursday - Teemu Pukki and Adam Idah played in Finland on Wednesday evening.
"They flew back Thursday morning at 6am. There’s lots of loads for these players, Kenny McLean, Max Aarons and Oliver Skipp as well. Tim Krul missed a flight because of traffic and was back late yesterday.
"They all will be just with us on the training pitch today [Friday]. It’s very tricky, but all COVID-19 results are negative. They seem to be fit and in a good mood and we will have to make some late decisions to see who plays tomorrow."
Farke continued by ruling Christoph Zimmermann out of the match at the AESSEAL New York Stadium with a calf problem. He's joins Onel Hernandez on the treatment table whose adductor injury was confirmed on Friday morning.
Marco Stiepermann and Todd Cantwell are both doubts for the match after picking up knocks in training.
On a positive note, Przemyslaw Placheta has recovered from the issue which ruled him out of the Derby County prior to the international break. Farke expects the Polish winger to be a topic from the bench.