Philippe Coutinho
Coutinho back in training after shoulder surgery. (Reuters)

Liverpool have been handed a major fitness boost with news that Philippe Coutinho will be fit to return to the side for next week's game against Arsenal.

The influential Brazilian has been unavailable for Brendan Rodgers after suffering a shoulder injury during the club's 2-2 draw with Swansea City last month and was forced to go under the knife to rectify the problem.

In his absence, Luis Suarez has returned the fold after finishing his ten game suspension as Rodgers has altered his formation to accommodate both the Uruguayan and Daniel Sturridge to offset the loss of Coutinho.

But the 21-year-old has this week returned to first team training and although the visit of West Brom this weekend may come too soon for the playmaker, he is likely to be available for the club's trip to the Emirates Stadium to give Rodgers the tantalising option of utilsiing the thrilling trio of Coutinho, Suarez and Sturridge for the first time this season.

"He might just be short for this weekend," Rodgers told a press conference, Liverpool's official website report.

"You always miss quality. He has re-joined training with the group. He's been on the field doing a lot of physical work. He has joined in with the team on a non-contact basis.

"I think, after the weekend, he'll be fine. He has got really good strength in his shoulder now; it's just getting him up to speed in training and joining the group.

"He has been in the last couple of days and has looked brilliant, to be honest - like he has never been away with his flow and fluency with the ball.

"His work has been excellent. It's great to see him back in and it's another quality player back for us."

Liverpool have taken seven points from a possible 12 in Coutinho's absence and remain within touching distance of league leaders Arsenal with two points separating the two clubs and second placed Chelsea.

Coutinho's countryman Lucas Leiva was another absentee for the Reds' 2-2 draw with Newcastle United last week due to his partner giving birth, but Rodgers was quick to assure the tenacious midfielder will be available again this weekend.

"He's fine. It was one where last week he became a father and on top of that, he had a long travel having been with the national team," Rodgers added.

"But he's back in and has trained really well this week. He'll be back available in the squad."