Chelsea boss Andre Villas-Boas plans to swing the axe on his shaky defence.
The Daily Mail says Chelsea travel to Blackburn after back-to-back Barclays Premier League defeats and the Portuguese is set to make changes to his back four at Ewood Park.
Jose Bosingwa - who has been highly criticised in recent weeks - could be dropped in move that would see Branislav Ivanovic shifted out to right-back.
John Terry will return to the heart of Blues defence after being rested for the midweek 1-1 draw in Genk and will be partnered by either David Luiz or Alex on Saturday.