Wayne Rooney could miss England's friendly international against Egypt at Wembley on Wednesday after suffering a knee injury during Manchester United's Carling Cup Final victory against Aston Villa.
The 24-year-old came off the substitute's bench to score his 28th goal of the season in United's 2-1 victory.
Sir Alex Ferguson confirmed after the match: "He got a whack right away. He has been complaining about that for a few weeks and I thought we might have to take him off.
"The doctors are assessing it. I don't know what England are going to do."
Meanwhile, Rooney has revealed that he started Sunday's game on the substitute's bench because he had been feeling unwell during the week.
He said: "I had a little bit of a stomach bug and the manager was looking for an excuse to leave me out.
"When he found out about that it made his mind up. I was still disappointed but it was the correct decision by the manager."