An already injury-hit England face an anxious wait to discover if Chelsea central defensive duo Gary Cahill and John Terry will become the latest members of their squad to be ruled out of Euro 2012.
England manager Roy Hodgson saw the side's final dress rehearsal before they set off for this month's tournament in Poland and Ukraine end with a 1-0 friendly win over Belgium at Wembley on Saturday.
But Cahill was shoved in the back by Belgium's Dries Mertens during the first half and, as a result, collided with England goalkeeper Joe Hart.
Cahill was promptly substituted by Hodgson before undergoing a scan amidst fears he could have broken his jaw.
Mertens was booked but that was the least of Hodgson's concerns, with Cahill's Chelsea and England colleague Terry suffering a hamstring problem.
An FA spokesman later said there would be no update on Cahill's fitness until Sunday, when Terry is due to have a scan.
England, who won thanks to Danny Welbeck's first-half goal, had already seen midfield duo Frank Lampard and Gareth Barry ruled out of Euro 2012 due to injury earlier this week.
"If he's fractured the jaw, which is a distinct possibility, then once again we lose another key element of our original group to go to Poland," Hodgson said of Cahill. "If he hasn't fractured it and it's a case of a bad bruise instead it won't stop him from going with us and it won't stop him from playing."
Hodgson though was more optimistic about Chelsea captain Terry's prospects.
"There's a slight worry on John Terry... As far as John was concerned he felt a slight tightening on his hamstring. That doesn't necessarily mean anything other than fatigue but he will also have a scan tomorrow (Sunday) and I'll have a definite answer then."
Cahill's replacement against Belgium, Joleon Lescott, had to wear a heavy bandage to cover a cut eye he suffered during a game where victory meant England, who previously beaten Norway 1-0 in Oslo, have won the first two matches of Hodgson's reign as manager.
England begin their Euro 2012 Group D campaign against France in Donetsk on June 11.