Besieged Mourinho faces former nemesis Klopp

Facing a crunch match against Liverpool on Saturday, embattled Chelsea manager Jose Mourinho must confront an adversary who condemned him to one of the most painful defeats of his career.

Juergen Klopp, Liverpool's new manager, was in charge of the Borussia Dortmund side which ousted Real Madrid in the 2012-13 Champions League semifinals, dashing Mourinho's dream of bringing the European Cup back to the Bernabeu in what he knew would be his final season at the club.

The pair resume hostilities with Mourinho reported to be facing the sack if results do not improve after the defending champion slumped to 15th place in the Premier League and was knocked out of the League Cup by Stoke City, but he has drawn hope from its recent upturn in performances.