I remember last time he got abuse, that was after the Juventus game, he had deleted his twitter account. Then Robbie stepped up and said: 'I don't know why Mikel is underrated by the media or the fans. He is very rated by us in the group and it's a position where you're a bit of an unsung hero,' the Italian explained. 'You do the dirty work which is not recognised all the time because the goalscorers and more creative players get the recognition. But he is very important for our team, he breaks up the play, he is physically strong, he is getting better on the ball with his distribution and dictates the tempo of the team as well so we are very happy to have him in our team.'