Liverpool scored an important win at the expense of Watford in the evening's 5-0 Champions League match at Anfield.
Liverpool, who had a 69 points lead at the top of the Premier League standings, were one point behind Manchester City, while Watford were at 40th in seventh place.
Liverpool managed to score in the 9th minute with a goal from Sadio Mani after a ball reached Arnold on the right side before sending Mani a cross with a header in the net.
In the 20th minute, Liverpool managed to score a second goal through Sadio Mani. After a cross from Arnold, he reached Mani in the penalty area before putting the ball into the net, ending in the first half.
Liverpool scored a third goal in the 66th minute after a pass through the box before setting the ball into Watford's net, and Virgil van Dijk scored twice to finish the match 5-0.