Watford boss Roy Hodgson admits they will probably have to go into Sunday's game against Arsenal without Ismaila Sarr.
He sustained a hamstring problem during his side's goalless draw at Manchester United last Saturday.
“He played so well at Manchester United. He was really good," said the manager.
“His work rate was excellent, he did a really, really good job for the team. And of course he was a threat in the latter stages of the game when we were breaking out a little bit. He looked like he might be the one to get in behind them.
“We were looking forward so much to get him back (from the Africa Cup of Nations) and we've not had the benefit we would have liked from that.
“These things happen in football. It's a pity for us, a pity for him and a pity for our fans. I'd like to think that we can recover him as quickly as possible."
He added: “I'm not worried for the long-term future, but he's definitely out for Sunday, and it's going to take a lot to turn around for Thursday and Sunday next week."
Need a VPN? Or seeking to switch? Then support Tribal Football by clicking here to sign up with our official partners NordVPN. Not only will you receive the best VPN experience, but also great discounts by signing up via Tribal Football. Thanks for your support!