The home fans don't seem to have given any of their own players grief so far. A generally positive atmosphere from Chelsea's point of view.

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Chelsea had 84% possession in the first 15 minutes. Watford have stemmed that somewhat now.

Almen Abdi's eyes light up as he controls 30 yards out and smashes over the Chelsea bar.

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That first 15 minutes - all Chelsea.

Since then - all Watford. Good side these Glory Hornet Boys.

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Jose Holebas is getting forward from left full-back for Watford. Cesar Azpilicueta has to chest behind a cross from the Greek. Ben Watson takes it and Odion Ighalo glances a header wide.

It just seem inevitable that fella will score today.

Troy Deeney and Odion Ighalo are holding the ball up really nicely now. They read each other so well do that pair.

The corner is cleared, but comes back in and Odion Ighalo is all alone on the penalty spot. He stretches and pokes wide, but was offside anyway. (Replays showed he was onside).

At the other end, Heurelho Gomes is quickly out to pluck the ball off the toes of Diego Costa. Good goalkeeping.

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Watford have done really well to come out of that first 15 minutes unscathed and they seem to have shaken off the nerves.

Gary Cahill has to scramble a Jose Holebas cross behind for a corner.

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Oh eh up. Here's Troy Deeney trying to put in Odion Ighalo (a familiar combo this season). But Ighalo fouls John Terry during the chase.

Branislav Ivanovic once again to the Watford by-line, but his cut-back is snuffed out.

Apologies to Watford fans for not mentioning your players more frequently, they're just not touching the ball.

Nemanja Matic's protective face mask has become such a fixture now, it's got his squad number on it.

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Relentless from Chelsea so far.

How relentless? 81.9% relentless.

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Willian takes a free-kick from the left-wing area, it takers a deflection and drops just wide of Heurelho Gomes's back post.

Watford are sitting back like a dad on the sofa after his Christmas turkey.

The Chelsea full-backs are attacking with freedom, and this time Branislav Ivanovic is at it to tee up Willian, but the shot deflects wide.

Ivanovic has a sniff at goal from the corner but misses the ball completely.

Oscar is given something to think about as Almen Abdi dumps him on his backside. 

Plenty of Chelsea possession at the moment.

The camera is trained on the executive box at Stamford Bridge. No Roman Abramovich there.

Chelsea are playing out of the back in a tidy fashion. Pedro gets a cross in for Diego Costa, who nods over.

Cesar Azpilicueta looked to go marauding down the left for Chelsea, but he could do with the pitch being a foot wider. Out of play.

The Guus Hiddink era begins... again.

Watford, in all black, get us under way.

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It is 'man versus machine' this week. Our man Mark Lawrenson takes on a state-of-the-art super-computer called SAM (Sports Analytics Machine) in his weekly prediction game.

Lawro has some very strong words for Chelsea's players.

Find out what he said and see his predictions here.