Peter Crouch has raised one main concern over Xabi Alonso replacing Jurgen Klopp at Liverpool. He said on TNT Sports: "I think he's the standout candidate. He's done incredible things at Leverkusen, knows the club [Liverpool] inside out. But it is very early days and it's a massive club and you've got to follow Jurgen Klopp. Reports suggest that current club Leverkusen wouldn't block their manager's move back to an old club.