Marco Silva wants Watford to channel their memories of taking points off big-hitters Arsenal and Liverpool this season to help them "enjoy" tonight's seemingly impossible task of taking anything from runaway Premier League leaders Manchester City.

The Hornets, who have lost five out of their last six games, are rank outsiders against a City side who dropped points for only the second time this season against Crystal Palace on Sunday.

But Watford have earned a couple of other scalps this season - and should have added another with what was close to a win at Chelsea too, in September, only weeks after they were battered 6-0 by City at Vicarage Road.

Silva said: "Those games will help. The Manchester City game at home was a great day for them, they came here after winning 5-0 in the Champions League and were very, very strong.

"They deserved to win, they did very well and they are the best team in the country. But this is a new game. They're doing amazingly, Pep is doing an amazing job, and it'll be very difficult.

"I hope our players can enjoy the match, though, but we have to hope we are at our best and that they aren't at theirs."

Tonight's game will be the fourth time the two Iberian managers have met, with Silva's Olympiacos and later Watford sides shipping 13 goals in the first three encounters, and failing to register a strike themselves.