"Xabi is a holding midfielder that can play long. He [Aquilani] is a player with more mobility, playing a little bit higher," said the boss.
"He can pass the ball and keep getting into the box.
"We have Mascherano and Lucas Levia both playing really well, with Gerrard in front. He can play instead of any of them.
"He can play as second striker if necessary, but his best position will be between Gerrard and Mascherano - or between Lucas and Gerrard."