Watford are on the trail of Lille winger Sofiane Boufal.

The Hornets have joined the increasing number of clubs to show interest in the Paris-born Morocco international, according to Sky Sports.

Boufal has already been tracked by the likes of Arsenal, Chelsea, Liverpool and Southampton but now Watford are seeing if they can make a splash in the transfer market.

It is understood that Lille value the 22-year-old, who is keen on a move to the Premier League, at around £15million.