There was plenty of attacking quality on show from the hosts at White Hart Lane, as Tottenham dismantled their opponents and extended their winning run at home to 11 consecutive Premier League matches.
Spurs remain reliant on Chelsea dropping further points, which Pochettino acknowledged, but the manager was again encouraged that they are giving the title favourites so small a margin for error.
Tottenham Hotspur kept up the pressure on English Premier League leader Chelsea at White Hart Lane on Saturday, with an easy 4-0 victory over Watford.
- Watford have enjoyed just one win in their last 11 away league games (D2 L8).
His 16th goal of the season laid the foundations for a resounding win as Spurs moved to within four points of league leaders Chelsea.
It means that 22-year-old Lopez, a Spain under-21 global on loan from Espanyol, could feature against Watford as Spurs bid to be crowned champions of England for the first time since 1961.
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Dele Alli has been directly involved in 14 goals in 13 Premier League games for Spurs in 2017 (10 goals, four assists).
Watford have never managed to score a few times in any of their previous seven Premier League game against Spurs (four goals in seven meetings). "He's an important player for us and for him to be available for us is great".
It was hardly Tottenham's most convincing win of the season, but it allowed them to move five points clear of third-place Liverpool with a game in hand, and also keeps the pressure on Antonio Conte's Chelsea.
"But it's true that after eight games if they don't win the Premier League, it will be tough for them to accept".
"We're more strong with (Kane) healthy and ready to fight again for the team".
On a day of unbroken sunshine across the country, Tottenham's South Korean forward Son Heung-min scored twice as the north London side chalked up a sixth successive victory to turn up the heat on Chelsea who play Bournemouth later.
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Spurs' cause will be aided by the return of Harry Kane who has missed the last month with an ankle injury.
The first half was what every Spurs fan dreams of.
Son needed less than 10 second-half minutes to double his tally for the afternoon, sweeping home another Trippier cross at the back post.
For so long, Kane has been Tottenham's talisman and poster boy - the one player they can not do without - but they are unbeaten in eight league matches (five wins, three draws) without the England striker this season and they were 4-0 up before he came on.
One of those men was Alli, and the midfielder continued his scoring steak with his fifth goal in six league games on 33 minutes - beating ex-Spurs goalkeeper Heurelho Homes with a wonderful curling shot from 25 yards which sailed into the top corner.
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Now, the striker has reiterated his happiness in Madrid and explained how daunting it is to answer the same question again and again.