The Bonus Points
Despite suffering a 4-2 defeat, it was Crystal Palace's James McArthur (£4.9m) who picked up the maximum three points after scoring both of the Eagles' goals.
The midfielder also chipped in with four recoveries and won three tackles, helping him accumulate a score of 41 in the Bonus Point System (BPS).
He posted a BPS tally of 39, winning six tackles and making seven recoveries in addition to his assist.
The Spaniard made seven clearances, blocks and interceptions (CBI) and won four tackles, while also providing the assist for Emre Can's (£4.8m) opener.
Coutinho's two assists from corner deliveries helped him score 30 BPS, narrowly missing out on the bonus points. The playmaker's BPS total was dented as he was tackled on nine occasions.
The ICT Index
Despite a lack of bonus points, Coutinho stood alone at the top of the ICT Index, scoring 18.0.
The Brazilian registered a Threat tally of 65, the highest of any player on the pitch, after producing nine touches and four goal attempts from within the Palace penalty box.
He also claimed the highest Creativity total on show, with 62, supplying seven crosses and creating four chances.
While he failed to score for a third successive Gameweek, Palace striker Christian Benteke (£7.7m) again demonstrated plenty of intent, recording three goal attempts from inside the box to earn a Threat tally of 61 and 7.4 in the Index overall.
The Belgian has now had 12 goal attempts in the box over his last three Gameweeks without finding the net.
The Scout Notes
Coutinho's eight points followed a 10-point return against West Bromwich Albion in Gameweek 9, maintaining his rich run of form.
He now sits second in the FPL midfield standings on 64 points, six behind Arsenal's Alexis Sanchez (£11.4m).
Having been the most popular transfer target ahead of the weekend, Coutinho already sits second for transfers in this week - more than 74,000 FPL managers have swooped for his services since the passing of the Gameweek 10 deadline and he now sits in 41% of squads.
Elsewhere, Firmino's composed finish for Liverpool's fourth means that he has now returned a goal or assist in three of his last four Gameweeks.
For Palace, Alan Pardew handed a recall to Scott Dann (£5.4m) at the back and took the decision to drop Andros Townsend (£6.2m) to the bench for the first time this season, with Lee Chung-yong (£4.4m) earning a start.
Townsend will hope for a recall at Turf Moor on Saturday, as will Jason Puncheon (£5.4) who entered the fray on 74 minutes having returned from a calf injury.
McArthur moved to 45 points for the season with his two goals, with Watford's Etienne Capoue (£5.1m) the only FPL midfielder to offer better value for money to this point.
However, McArthur's four goals have been his only efforts on target, suggesting he will struggle to maintain his current scoring rate.