The Blues are looking to break out of a three-game winless streak when they take on the high-flying Hornets at Stamford Bridge on Saturday
Chelsea are without a win in three games going into Saturday's Premier League meeting with Watford.
The Blues had won seven games out of eight and produced a masterful away performance at Atletico Madrid before losing to Manchester City at the end of September.
They have since been beaten by Crystal Palace and drawn with Roma and will hope to snap their current skid in their second of three consecutive matches at Stamford Bridge.