It is unfortunate on the player that he will replace of course, but the Arsenal and England international defender Calum Chambers has been handed a fantastic chance to impress Gareth Southgate in the opening game of the Euro under 21 tournament for England.
As reported by the BBC today, the young Everton centre back John Stones has suffered a head injury during England training and although it does not sound like a serious problem, the manager has confirmed that the need to be cautious with head injuries means that Stones will definitely miss the first game and probably the second.
There are other central defenders in the squad but Southgate used our young Gunner in the final warm up game and with Chambers having dropped down from the senior side to go to these finals, you would think that he would get the nod for the opening game against Portugal tonight.
And if he does well, Southgate will probably start him against Sweden on Sunday and then who knows? The manager might not want to change a winning team and even if Stones, who is probably his first choice, does come back in then Chambers could secure the place alongside him.
Whatever happens then, some high level games as a centre back, as well as the invaluable experience of tournament football should be very handy indeed for Chambers and also for Arsenal. Go get em Calum!