Everton midfielder Tom Cleverley will be out for up to eight weeks after suffering ankle ligament damage.
The 26-year-old was injured in his side's recent 0-0 draw at Tottenham after a challenge with Eric Dier.
It was feared Cleverley had broken a bone in that Premier League game, but Everton boss Roberto Martinez said he would miss "six to eight weeks".
"Knowing Tom and how fit and strong he is, we're looking at a six-week period," he added.
Cleverley joined Everton from Manchester United on 1 July, having spent last season on loan at Aston Villa.
Lennon targets England return
Meanwhile, winger Aaron Lennon hopes his permanent move to the Toffees will give him the chance to win back his England place.
The 28-year-old moved to Goodison Park on transfer deadline day and hopes to force his way back into the international reckoning after more than two and a half years without a cap.
"I do want to get back into the England set-up as I've been out of it for a while now. I love playing for England and I've missed it," said Lennon whose 21st and last cap came as a substitute against Brazil at Wembley in February 2013.
"There are a lot of England players here [at Everton] so hopefully the manager will be coming to watch a lot and that gives me a better chance to show what I can do if I am playing.
"I just want to get back to playing the way I know I can and get a run of games. You need a run of games to get up to form and that is my aim."