Frank Lampard's decision to settle on his back four has helped Chelsea tighten up in defence and makes them genuine title contenders according to Martin Keown.
The Blues take on Tottenham on Sunday looking to underline their Premier League credentials. Chelsea have won four of their last six league outings and kept four clean sheets during that time.
Keeping goals out was their Achilles heel last term as Lampard tried and failed to sure up his backline. The arrival of key recruits, namely Thiago Silva, and choosing four regular starters has seen a massive shift however.
The former PSG man's experience has been evident and it seems as if the west London outfit have turned the corner. "Lampard was chopping and changing his defence.
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