Liverpool defender Dejan Lovren has compared their loss against Watford to a smack on the face.

The Reds centre-back admits that it was tough for the team to lose their undefeated run in the league.

While they are near certainties to win the title, they cannot match the Arsenal 'Invincibles' that won the league without losing a game.

The Reds lost 3-0 to Watford on Saturday in the Premier League.

"We know there is always an end for everything," said Lovren to reporters.

"It is here where our unbeaten run ended. We will not look at this result and think it was a bad season because of losing here. One performance won't ruin everything. But this is always a learning process.

"We will look forward and, until the end, we can still make this a perfect season (by winning the title) but it is a wake-up call. The last couple of games hadn't been the best performances but we still won. This one, it didn't happen. This one was like someone hit us in our faces and we deserved it.

"We are calm. Everyone knows it is something that we should learn from. The manager looked at us when he came into the dressing room and he knew that we knew it wasn't our best performance. We felt a little bit ashamed, you know? We should have done better. There is no excuse."