Roy Hodgson fears he may have to cope without the services of leading scorer Andy Johnson when Fulham travel to the Emirates on Saturday for their clash with Arsenal.
Johnson was absent as the Londoners squeezed by Swansea City 2-1 on Tuesday night to book a FA Cup quarter-final tie with Manchester United.
And Hodgson revealed it was not a case of resting his nine-goal frontman.
He said: “Andy got a knock in training, but we still thought he would be fine for the game on Tuesday.
“But unfortunately he didn’t respond to treatment, and we did not want to rush him back.
“He has missed a couple of days training, but hopefully he will be ok for Saturday.”
Fellow striker Bobby Zamora was the Fulham hero again on Tuesday, heading the vital winner a mere two days after ending his barren run against West Brom.
And Hodgson admitted he was delighted with the form of his £5 million man.
He added: “To be fair Bobby could have had four or five goals.
“I thought his all-round performance was excellent.
“It was just what we hoped he would do when we brought him here, and he is back with a vengeance.”
So now the Cottagers can look forward to welcoming United on March 7 with a Wembley appearance up for grabs.
And Hodgson has warned that his side will go into the game all guns blazing.
He added: “Of course it is Manchester United, and a lot of people are probably already documenting our demise.
“But it is the FA Cup, and I am sure we will give them a really good game.
“Are the odds on us winning – the answer is obviously no.
“But they have a lot on their minds, their will be a great atmosphere and we are still in there fighting.”