Liverpool moved top of the Premier League ahead of Manchester City's match at Burnley on Saturday with a 2-0 win over relegation-threatened Watford.
Jurgen Klopp's men secured a vital win to initially go two points clear at the top before City's clash at Turf Moor later in the day.
Starting the day one point behind Pep Guardiola's champions having played 29 matches each, Liverpool took the lead through Diogo Jota on 22 minutes before Fabinho made it 2-0 late on from the penalty spot.