A SOLITARY strike from Kieran Trippier saw Tottenham claim all three points at White Hart Lane in the Barclays Premier League.
The English right-back met substitute Dele Alli’s cross at the far-post midway through the half, and that ultimately proved to be the difference between the sides.
Watford had glimpses of goal, but never really threatened the Spurs back-four enough to warrant a point.
Quique Sanchez Flores made five changes to his starting XI as Watford visited Tottenham Hotspur.
The Hornets' Head Coach opted for fresh legs following Wednesday night's hard-earned goalless draw against Chelsea, with Allan Nyom and Nathan Aké recalled in the full-back positions in favour of Juan Carlos Paredes and José Holebas.
There was also a return to the line-up for Miguel Britos, who replaced Sebastian Prödl in central defence having missed out during midweek through illness.
Mario Suárez made his first start in a Watford shirt, with Valon Behrami dropping to the bench, while there was also a place for Almen Abdi, which meant Troy Deeney was named as a substitute for the first league game this season.
In Deeney's absence, goalkeeper Heurelho Gomes was named the Hornets' captain for the day.
The home side started the game enjoying large periods of possession, but without really threatening the Hornets' goal.
Spurs talisman Harry Kane had his first sighting of goal in the first five minutes when he tried an audacious lob over Gomes, but it lacked the power to beat the Brazilian.
Nacer Chadli’s flick-on at the near-post from an Erik Lamela cross was the next real chance for the hosts, but again Gomes was there to comfortably claim unopposed.
Flores’ side grew into the encounter as the first-half ticked by, but again it was Spurs who looked the most likely to open the scoring.
Mousa Dembélé missed from close-range after a scramble from a corner, which was awarded after Nyom had just got his head in to clear when Chadli was well-placed.
The half-hour mark was greeted by arguably the chance of the half as Christian Eriksen poked the ball out of the congested middle into Ben Davies’ path. The Welsh full-back hit powerfully towards the corner, but Nyom was across to superbly deflect the ball wide.
It was from a set-piece where Spurs found joy next. Lamela’s inviting ball found Chadli, but the Belgian could only head harmlessly wide.
The best chance for the Golden Boys fell minutes after, as Abdi sent a looping effort onto the roof of the net with Lloris out of his goal.
Spurs responded once more though, with Gomes forced into making two smart saves as both Davies and Lamela looked to find the opening goal.
Flores made a double change at the break with Suárez and Abdi being replaced by Behrami and Deeney, and he was then forced into his third and final substitution eight minutes into the half when Britos was forced off injured, with Prödl coming on.
The pace was taken up another notch after the interval by the home side, but it came without really testing Gomes, as Chadli had arguably the best chance, but it was wide once more.
Alli was introduced in the home team’s first change just after the hour-mark, and he made an instant impact as he proved to be the catalyst in Spurs breaking the deadlock.
The Englishman put over a delightful cross with the outside of his boot, enabling Trippier to slot home at the far-post under pressure from Aké.
That lead was nearly doubled soon after as Eriksen put Lamela through, but the Argentinian was unable to steer his strike on target.
Gomes had to be at his brilliant best to deny another chance for Spurs, as substitute Son Heung-Min found space to hit one, forcing Watford’s keeper into a low save with his feet.
The Hornets found it difficult to muster much going forward in the second-half of the fixture. A ball over the top found Deeney bursting forward, the skipper managed to find Ighalo, but the Nigerian was pushed a little wide, which eventually led to his shot being no danger for Hugo Lloris.
Ighalo had the Golden Boys’ next glimpse of goal, with an acrobatic overhead kick that went over the target after he had met Nyom’s cross, and that ended a difficult afternoon for the Hornets in North London.
HORNETS: Gomes (GK) (c); Nyom, Britos (Prödl, 53), Cathcart, Ake; Suárez (Behrami, 45), Watson; Jurado, Capoue, Abdi (Deeney, 45); Ighalo.
Subs: Pantilimon (GK), Holebas, Anya, Amrabat.
SPURS: Lloris (GK) (c); Trippier, Alderweireld, Wimmer, Davies; Dembele, Dier; Lamela (Son, 72) Eriksen (Carroll, 90), Chadli (Alli, 61); Kane.
Subs: Vorm (GK), Walker, Rose, Mason.
Booked: Capoue (59).
Referee: Roger East
Attendance: 35,997 (2,914 Watford)