Roy Hodgson had been considering moving Theo Walcott inside to try him as a striker before the Arsenal forward was ruled out of England's World Cup qualifier in Poland on Tuesday due to the chest injury he sustained at Wembley.
Walcott initially seemed to be struggling to breathe normally after the collision at Wembley with the San Marino goalkeeper, Aldo Junior Simoncini, and was taken to hospital on Friday night for checks.
"It was a brutal challenge," Hodgson said. "As an international coach you never like sending a player back to his club with a bad injury."
Though no diagnosis was confirmed on Saturday, reports suggested he had sustained a bruised lung. The FA said: "He was monitored overnight in hospital as a precaution and will return to his club for further treatment."
With Aaron Lennon and Adam Johnson already in his squad, it seems unlikely Hodgson will call up any replacements. And even taking Walcott's injury into account, Hodgson remains pleased with his attacking options.
"Up front we have Jermain Defoe as well, Andy Carroll is coming back, and I was even thinking that Walcott might be interesting to look at in that position, but it is clear to everyone now that Danny Welbeck has handled the step up to international football very well," he said.
"He has to fight very hard to get a place in the Manchester United team because the quality of competition up there is so great, but I think he is learning and improving all the time. I think people can see we have a national team who can pass the ball and we have a lot of players with pace, and if we want to compete with the top teams we have to continue down that route. All the best national teams use pacy players who can pass the ball well."