The 20-year-old was in squad to play against Czech Republic and Germany but will now return to Reading for treatment.

Chalobah missed the trip to Charlton on Saturday but Steve Clarke played down fears of a long-term injury in the aftermath of the game.

He said: “I think Nathaniel will be ok come the other side of the international break.” A total of eight senior players are away on international duty this week, as well as a number of academy stars.

Chris Gunter and Hal Robson-Kanu have joined up with the Wales squad ahead of a trip to Israel in a Euro 2016 qualifying match.

Alex Pearce has been called up by Republic of Ireland whilst Oliver Norwood has joined up with the Northern Ireland squad.

Royals midfielder Hope Akpan has been called up by Nigeria for their games with Bolivia and South Africa.

Danny Williams, Adam Federici and Garath McCleary are also away with USA, Australia and Jamaica respectively.

Clarke gave his players a couple of days off following the defeat at Charlton but the players were back in training today.

“The first week will be trying to refresh everybody,” he said. “We have a lot of games in April so we need to get them physically fresh, mentally fresh ready for a lot of games in April.”