"People still don't realise how young Momo is. He's moved to a big club in a new country and played really well for a long time, but he's not an experienced player," said the Liverpool boss.
"We're not talking about someone like Didi Hamann who developed over a long period of his career, but a player who is still learning part of the game.
"When Momo came back from his shoulder injury, he played at a really high level immediately. Sometimes this happens when you come back, but then after four or five games it's harder to play at the same consistency if you've not played for a long time.
"Before this he also had a serious eye injury. I don't think that's still troubling him, but he did really well to come back so quickly from this. He's been really unlucky with injuries for the last two years and still came back strong.
"When you set a really high standard people expect you to play this way in every game. That's not easy, particularly for a young player, but Momo has been really good for us.
"I'm not worried about him. There are times in a season when it's more difficult and with Mascherano coming here and playing well, that adds to the competition. But we all know Momo's qualities."