Emre Can scored one of the goals of the season as Liverpool beat a poor Watford to capitalise on favourable results in the race for the Champions League.
The Reds midfielder met Lucas Leiva's delivery with a wonderful bicycle kick which flew into the top corner.
Watford rarely threatened, but almost snatched a point when Sebastian Prodl smashed against the bar in injury time.
Liverpool moved four points clear of Manchester United in fifth, while Watford remain 13th.
Jurgen Klopp's side know they will secure a top-four Premier League finish - and a return to the Champions League for the first time in three seasons - by winning their final three games.
The Merseyside club will host Southampton and relegation-threatened Middlesbrough at Anfield, either side of a trip to West Ham.
More to follow.