Liverpool have received plenty of plaudits this season for their attacking force under manager Jurgen Klopp, but questions are now being raised.The Reds have now failed to score in their last two games in all competitions - an unwelcome statistic for the Merseyside outfit.Not only that, OptaJoe has revealed that it has been almost a year since the team have recorded consecutive matches without finding the back of the net.[ad_pod id='now-tv' align='centre']

Klopp's men were held to a goalless draw by League Two outfit Plymouth Argyle at Anfield last weekend in the third round of the FA Cup.

In fairness, the starting XI had a number of academy players, but the manager brought back some first-team members for Wednesday night's EFL Cup semi-final first leg against Southampton, and they still could not score, in the end suffering a 1-0 defeat.

The positive heading into Sunday's Premier League clash, though, is that Philippe Coutinho has made his long-awaited return by coming off the bench against Southampton.

The Brazilian scored six goals in all competitions before he was struck down by an ankle injury towards the end of November.

Klopp will be hoping that the playmaker has his shooting boots on when the team travel to Old Trafford this weekend.

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