Liverpool head into Wednesday's Premier League encounter with Watford holding a one-point lead at the top of the standings.
The Merseyside giants had been seven points clear at one stage, but three draws from four top-flight games has resulted in Manchester City closing the deficit.
Liverpool play host to the Hornets having registered a goalless draw against Manchester United on Sunday afternoon.
Ahead of this week's meeting, Sports Mole assesses how Roberto Firmino has fared in his previous games against the Hertfordshire outfit.
Firmino has enjoyed his time against Watford with five goals and five wins coming from seven matches against the Vicarage-Road-based side.
The Brazilian is yet to net a double in this fixture, with each of his strikes coming in separate matches since the end of the 2015-2016 campaign.
Firmino is currently on a three-game scoring streak against Watford, and three assists have also come from his 443 minutes on the pitch.
Two of those were registered in Liverpool's 6-1 triumph at Anfield towards the end of 2016.
