Steve McClaren’s considering dropping Aleksandar Mitrovic for Newcastle United’s visit to Selhurst Park.
The striker was anonymous in Saturday’s 3-0 home defeat to Leicester City.
Mitrovic had been embroilled in controversy while away with Serbia, who were beaten 4-1 by Czech Republic during the international break.
There was reportedly a dressing-room confrontation after the loss in which Mitrovic was said to be involved.
But United coach McClaren – who replaced Mitrovic with Papiss Cisse in the 62nd minute – says events in Ostrava could not excuse a below-par performance for his club.
Asked if the summer signing could be taken out of the firing line against Crystal Palace on Saturday, McClaren said: “We will have a look at that.”
Mitrovic, isolated and starved of service, drifted out of the game midway through the first half against Leicester.
Under-pressure McClaren, however, wants his players to “roll their sleeves up” when things are not going the team’s way.
“We have talked a lot about the disruption of the international break and players being away,” said McClaren, whose side are a point above the Premier League’s relegation zone.
“It is a lot of hullabaloo and also a lot of rubbish and no excuse. That’s what football is. Sometimes it’s not all fine weather and going your away.
“Sometimes you have to roll your sleeves up and this is a time when we have to do exactly that.
“Mitrovic is part of a Serbia team that has had a bad time. That might have affected him, but it’s no excuse.”
Mitrovic has scored two goals for the club since joining from Anderlecht