This trip to The Hawthorns was as important as ever as Liverpool needed the three points to consolidate their position in the top four.
Firmino and Coutinho were both deemed fit so Jürgen Klopp recalled the duo to his starting line-up along with their compatriot Lucas, who replaced an injured Ragnar Klavan.
The first half
The first meaningful attempt on goal for Liverpool didn’t come until the 15th minute, after a cagey start to the game.
Coutinho seized on a loose pass from Claudio Yacob into the centre-circle and fed Firmino on the left, but Bobby’s low shot across Ben Foster went narrowly wide.
The game then opened up, with Nacer Chadli missing his kick after a West Brom set-piece routine at one end and Coutinho sent an ambitious left-footed volley from Can’s lofted ball off target at the other end.
The Brazilian duo threatened again when Firmino stole the ball from Darren Fletcher and presented it to Coutinho, who attempted a trademark curler that cleared Foster’s bar.
Mignolet saved comfortably an attempt by Hal Robson-Kanu just ten minutes before half-time and the Reds went into the break a goal up courtesy of Roberto Firmino.
It was a Brazilian duo involved in the goal, but not the one you’re thinking of! Lucas did well to flick Milner’s free-kick onto the back post and Firmino nodded past Foster from close range after beating Dawson to the ball.
1-0 to the Reds from a set-piece!!!!
The second half
This was a more positive half for the Redmen and they could’ve doubled their lead with another goal in the 57th minute. Gini Wijnaldum played Firmino in down the right and Bobby stood an inch-perfect cross up for the onrushing Milner, who only managed to side-foot over the bar on the volley.
It wasn’t long before Origi had the ball in the net, only for the linesman to flag Firmino as offside before he squared to Divock, and Joel Matip then nodded Milner’s free-kick wide as the Reds continued to press to make it 2-0.
Mignolet was a spectator for much of the second half but made a crucial late save with his legs to deny Phillips on the counter-attack.
In the 90th minute, Coutinho was replaced by Alberto Moreno, who even had a chance to score when Foster went up to the other end for a corner and was left stranded as Liverpool broke forward, only for Moreno to shoot from distance and the ball rolled agonisingly wide.
Nevertheless, a clean sheet and three vital points for Liverpool. Up the Reds!