Fabregas clips in late winner from edge of area
Watford trail 3-1 but level through Janmaat & Okaka
Terry scores on return to starting XI
Chelsea's first game at Stamford Bridge since winning title
Watch Match of the Day at 22:45 BST on the BBC Sport website
Stefano Okaka
Where are the bouncers? Watford are spoiling the party.
Substitute Stefano Okaka has only been on the pitch for a few minutes when he pounces after Chelsea's defence fails to deal with Tom Cleverley's cross.
This was not in the script.
Image source, Getty ImagesHas Diego Costa lent Cesar Azpilicueta his shooting boots? Moments after he is denied by a fine stop by Heurelho Gomes, the Spaniard sends a first-time shot over the bar.
Chelsea 3-2 Watford
A Chelsea change coming up? Antonio Conte is speaking to his coaching staff. He has some decent back-up to choose from - Alonso, Fabregas, Costa, Cahill and Pedro among them.
Bradley Allen
Ex-QPR striker for BBC Radio London
I'm not sure the former Tottenham keeper knew much about that. It's sublime football from Chelsea, a number of players involved. The luxury of the players involved - how Willian is not in the Chelsea side regularly is beyond me. He'd walk into any other Premier League side.
Chelsea 3-2 Watford
Tricks and flicks from Chelsea. They're strutting around like champions. Michy Batshuayi is denied by Heurelho Gomes from close range after a fine move.
Image source, PAChelsea 3-2 Watford
Lots of action on and off the pitch. The noise levels rise again at the Bridge. Antonio Conte has just spent about a minute applauding the fans. Nice.
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Elegant Nosa: JT is not only the greatest defender in PL history, he is the greatest captain. How many captains have led five PL winning teams?
Image source, ReutersChelsea 3-2 Watford
This might have started slowly but both teams are really going for it. Cesar Azpilicueta is angry with Lee Mason for not taking action after a heavy challenge by Daryl Janmaat before Nathaniel Chalobah is booked for his reaction after fouling Valon Behrami.
That's four yellow cards dished out by Mason.
Chelsea 3-2 Watford
Exactly two minutes passed between Chelsea's third goal and Watford's second - and the Blues did not get a kick in-between.
After Valon Behrami restarted the game from the centre circle, Watford strung together 20 passes before the ball found the feet of Daryl Janmaat (number 22).
And then the Dutchman did the rest...
Image source, Opta#bbcfootball or text 81111
Lotak: Given that Zouma / Ake have everything to prove, could this shoddy defending be a sign of a huge weakness next season?
Pat Nevin
Ex-Chelsea winger on BBC Radio 5 live
That is a cracker of a goal. Daryl Janmaat kept on going and going, the defenders should have tracked him better, but take nothing away from him. It's arguably the goal of the game.
Daryl Janmaat
What. A. Goal.
Watford had failed to score in the past four games but Daryl Janmaat weaves through Chelsea's static defence to fire his side's second.
It's a sublime finish. Chelsea are not making this easy for themselves.
Image source, ReutersBradley Allen
Ex-QPR striker for BBC Radio London
There were warning sides from the Cesar Azpilicueta goal. The ball squirmed its way through the Watford defence. Michy Batshuayi will not score an easier goal for Chelsea. It's 3-1 but it could end up any score.
Michy Batshuayi
The man who won the title has another goal.
What an unforgettable few days Michy Batshuayi is having. The Belgian is in the right place at the right time to tap home after a move involving Kenedy.
Chelsea have started the half really well. Moments earlier Willian, who is enjoying, was denied by Heurelho Gomes.
Image source, Getty Images
Phil McNulty
BBC Sport chief football writer at Stamford Bridge
If this match was meant to be a gentle wind-down and a chance for Chelsea to celebrate the title, no-one has told Watford manager Walter Mazzarri.
The Italian is very worked up in his technical area - he's even taken his thick black scarf off now.
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Lotak: Will go one further than Ian. Given his achievements, Terry is the best ever PL defender. Top scoring def & 5 PL titles.
CZ_Wolf: Ake has been very good so far ! Impressive ! Hope he'll get more chances next season!
Gypsy Davey: What's the betting Terry gets sent off in the 2nd half - the we'd have the Good, the Bad and the Ugly!
Chelsea 2-1 Watford
Will Diego Costa come on? Will John Terry play the full 90 minutes? Will Watford spoil the party?
So many questions. We're back under way.
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Nii: This first half can be summed up simply as "A tale of two Terrys". He was tremendous and terrible, all at the same half.
Image source, Rex FeaturesChelsea 2-1 Watford
Image source, .Watford had more possession than Chelsea in the first half but are 45 minutes away from a fifth straight defeat.
The Blues had two shots on target - scoring from both.
BBC One
Match of the Day
You can catch highlights and all the colour from Chelsea's first game back at Stamford Bridge since winning the Premier League on Match of the Day later.
It starts at 22:45 BST except Northern Ireland, Scotland and Wales.