Watford head coach Marco Silva has admitted that he will have to wrap Roberto Pereyra up in cotton wool after the Argentinian suffered another injury problem.
The 26-year-old former Juventus star, who missed the second half of last season after suffering cruciate ligament damage, limped out of the Hornets' recent 4-2 defeat to Chelsea.
Speaking before Saturday's Premier League match against Stoke City, which Watford are 21/20 with bet365 to win, Silva said: "I can't say to you 100 per cent for sure [when Pereyra will be back].
"I believe this injury will not keep him out for a long time but we need to be careful, and put him back in when he has good fitness."
Watford are 9/2 to beat the Potters by a two-goal margin.