A debut for new signing Fernandes for Spurs, as he replaces Lo Celso, having joined the club on Wednesday.
Watford also make a change, Chalobah makes way for Pereyra.
Watford spread play from left to right and Sarr picks up on the right edge of the area and he fires over
Just for the moment Spurs have managed to take the wind out of Watford's sails, keeping possession well themselves and slowing the game down. It has quietened the home crowd too.
Deeney misses his big chance
Wow, what a game we have now, both sides going for it and having plenty of shots.
Now Deeney turns in the box on the left, works himself some room and shoots to the far corner, it looks in, but deflects on a defender to go just wide.
Corner comes to nothing
Tottenham muster an attack, Son cross from the right and Ali does well to get his head on the ball at the back post as he falls over, but puts it over
Spurs are playing in dangerous areas around their own half and keep losing it. Tanganga loses a 50/50 in his own box to Sarr, but he slices the ball wide from a similar position to Doucoure a moment before.
Watford should be celebrating the opener right at the start of the half.
The home side counter attack and Sarr passes low into the middle of the box, where Deeney dummies and Doucoure picks up the ball, gets within six yards of goal and then shoots wide from a tight angle. It was easier to score
Here we go again
Will we get goals in the second half? Sky Bet have Price Boosted:
Plenty of info and previews to get your teeth into ahead of Liverpool v Manchester United on Sunday.
During the break, do take a read of our full Premier League tips here and our Sky Bet EFL tips here
They include....
Possession: Watford 37.1% v 62.9% Spurs
Shots: Watford 7 v 7 Spurs
Pass success: Watford 68% v 86% Spurs
Total passes: Watford 158 v 279 Spurs
Corners: Watford 1 v 1 Spurs
Yellow Cards: Watford 2 v 0 Spurs
No goals and only half chances, but still an enjoyable half. Spurs started very well and dominated, but Watford grew into the game and finished the half the better side, with Spurs glad of the half-time whistle.
Moura's had the best chance, with Foster making an excellent one-on-one block during the only clear cut chance of the contest to date.
A right-wing cross teases its way towards Deulofeu and Doucoure but is nodded away, but only so far as Capoue. He brings it down on his chest but Alderweireld nicks it off him.
We will have 2 minutes of added time, not sure how they've worked that out as fixing the ref's VAR earpiece took four minutes. We are into it now.
Watford cross from the right and Spurs head clear to the edge of the area. It falls to Chalobah who shapes to shoot, but instead cleverly chips the ball into the six yard box to Deeney, who has positioned himself between defenders.
The Watford skipper directs the ball towards goal, but cannot get the power on the header to trouble Gazzaniga, who catches comfortably.
Stunning ball from Alderweireld from the back which finds Son and the Korean takes a shot at goal while running at full steam. It's always going to be tricky and he blasts it into the stands. Would have been a goal of the season contender is that had gone in.
After that delay the game has exploded into life once more. Now Watford come forward and get a cross from the right and it is backheeled wide by Deeney.
Watford come again and get a corner. They go short and when the cross comes in it drops in under the cross bar and with the sun in his eyes Gazzaniga does well to tip it away from his goal and danger as a whole.
Tottenham move the ball quickly on the edge of the Watford box. Son and Alli exchange passes with the former then shooting from the angle, and a deflection making his effort tougher than Foster would have liked to hold on to.
Mike Oliver's VAR ear piece is broken. So play stops for 3.20 minutes as he gets it fixed in order to hear his team at Stockley Park.
Possession: Watford 32% v 68% Spurs
Shots: Watford 3 v 4 Spurs
Pass success: Watford 67% v 89% Spurs
Total passes: Watford 93 v 195 Spurs
Tottenham are still enjoying more possession but Watford are controlling them more now and getting more of the ball themselves.
It is now like two boxers just gentle jabbing at each other from range
Chalobah wastes the free-kick, trying to be too clever. He sees Gazzaniga off his line and tries to chip him, but gets it all wrong, as it is well over and well wide.
He should have crossed it
The first of the day goes to Tanganga. He messes up a simple defensive header and allows the ball to fall to Sarr and he rugby tackles him to the ground in sheer panic.
Yellow card and now a dangerous free kick to Watford on the right of the area
Watford are finally getting into this contest, enjoying more possession in the last five minutes.
Capoue gets to the byline down the left and picks out Sarr on the edge of the box. The ball is behind him and he tries to dig an effort out into the top corner and bends it well over the bar.
Watford have Chalobah to thank for keeping Tottenham at bay so far.
He is working hard to break up Spurs' passing play in the middle of his own half and it has halted the visitors on a number of occasions when they've looked dangerous.
He is reading the play really well and sticking in some vital tackles
Really good start from the visitors here, with Watford struggling to get hold of the ball and thus break out of their own half.
Spurs are getting a lot of joy down both wings and getting some good crosses in. Watford have not been convincing in dealing with those crosses as yet.
Lamela, Son and Lo Celso seeing a lot of the ball and playing some lovely passes and crosses.
Lo Celso has started well and plays a curling ball to the left side of the box where Son is in loads of space again.
Mariappa is onto him quickly and closes down the space before he can shoot, from what briefly looked a dangerous position.
Spurs lob it into the Watford box and shout for handball - it did hit defender Cathcart's hand, but accidentally and VAR isn't bother about it.
As Spurs appeal, Watford break and Deulofeu carries it 50 yards before shooting wide from the edge of the box. Excellent run and he is annoyed he slices his finish. It was an early chance.
Sorry to mention is so soon and ruin your mood. But just to let you know that the officials have now been instructed to use the VAR monitor in the dugouts to check their decisions - like we saw in the World Cup - rather than just listening to the ref in his ear.
It has only taken until January to put this obvious system in place!
And away we go. Both in their traditional home kits - Watford in the yellow, Spurs in the white.
Spurs are playing with a back four, with Winks at the base of the midfield
The teams are out at a sunny Vicarage Road. So a reminder of the teams.
Watford: Foster, Mariappa, Cathcart, Dawson, Masina, Sarr, Doucoure, Capoue, Deulofeu, Chalobah, Deeney
Subs: Gomes, Gray, Quina, Holebas, Kabasele, Pussetto, Pereyra
Spurs: Gazzaniga, Tanganga, Alderweireld, Vertonghen, Lamela, Winks, Lo Celso, Aurier, Son Heung-Min S, Alli, Lucas Moura
Subs: Vorm, Sanchez, Dier, Sessegnon, Eriksen, Skipp, Fernandes
Watford at home during Pearson’s reign have become gritty and there’ll be no more stepping back or half-hearted tackles. Four yellows in the game against Manchester United, five yellows and a red against Villa and another five yellows and a red against Wolves prove this fact.
Sky Bet have Price Boosted for Watford v Spurs:
He says: "I’m particularly keen to get with them this weekend as I’ve not been impressed with Tottenham since Jose Mourinho took over. They seem lacking in so many areas and I no longer see that usual Mourinho stamp of defensive solidity.
The manager's desperation to win the FA Cup also means the full side played in the replay against Middlesbrough on Tuesday as well as the first game up at the Riverside Stadium.
The squad looks thin with no Harry Kane and the early kick-off at Watford will be their fifth game in 18 days. I’m against them."
By the way, if you missed it this week, Sporting Life made a major signing in the transfer window - Sky Sports and talkSPORTS Laura Woods.
Woodsy will be bring you her unique insight from the Premier League in our fortnightly column, giving her opinion and stories from behind the football curtain.
Her first column reviewed her standout performers of the season so far - do please take a read here
After beating Manchester United, Villa and Wolves, Watford are looking to win four consecutive home top-flight games within the same season for the first time since December 1986.
Having lost to Liverpool and Southampton, Tottenham are aiming to avoid losing three consecutive league games for the first time since November 2012.
So a record could be broken today - or we will get a draw to ruin everyone's fun
We know Tottenham have struggled away from home over the last 12 months, and this stats just sums up one of the big reasons why...
Spurs are one of just two sides yet to keep an away clean sheet in the Premier League this season, along with Aston Villa.
Spurs have conceded in each of their last 18 away league games, their longest such run in the top-flight since April 1977 (a run of 20).
Meanwhile they have won just two of their last nine away league visits to Watford.
Watford are finally out of the relegation zone thanks to a run of six unbeaten. But history is against them today, as they've won just one of their 13 Premier League matches against Tottenham (D4 L8), which was a 2-1 win at Vicarage Road last season
Although I'm sure they will feel in an excellent position to get that second win this afternoon considering Spurs' problems.
Another big day ahead and big Price Boosts from Sky Bet:
Check out all our Premier League tips here.
For this match we are tipping . Why? I hear you ask. Well...
You would not back the visitors with real confidence and Watford continue to be undervalued in the markets, available at 23/10 to win and at an appealing 11/8 in draw no bet.
One element of caution is that Watford are now six unbeaten in all competitions and the run has to end eventually. But, nevertheless, this home match, with the early kick-off often producing these sorts of results, is most definitely winnable.
Where some teams often stay tight and grind opponents down, Watford have often taken the initiative and scored early on during this upturn in results.
They have scored in the first half in five of six - the other coming after 50 minutes - so the odds-against price on them scoring in the first half does have appeal to get us off to a good start for the day.
Watford, unsurprisingly, are unchanged from the side that hammered Bournemouth 3-0 last time out.
Exciting name on the bench though - new signing Ignacio Pusseto
Watford: Foster, Mariappa, Cathcart, Dawson, Masina, Sarr, Doucoure, Capoue, Deulofeu, Chalobah, Deeney
Substitutes: Gomes, Gray, Quina, Holebas, Kabasele, Pussetto, Pereyra