Pochettino said: "I think it's a good night for us because the opportunity was to take the three points - three points that allow us to be in a good position in the table".
"Maybe it wasn't a great performance but the most important thing was to be competitive and win the three points". I am very happy because the three points now put us in a very good position.
Karnezis fumbled a cross from Trippier and Christian Eriksen reacted quickest to pass the ball across to Alli, who took one touch and slotted home his shot from eight meters out in the 16th minute.More news: Windows 10 April Update Set For May Rollout
Asked if Kane could play himself back to 100 per cent before the tournament, Pochettino replied: Yes of course.
The Frenchman stood firm and kept his 14 clean sheet of the season in all competitions, making notable interventions against Andre Gray, Richarlison and Abdoulaye Doucare as Watford tried to make a game of it.
The visitors are still not guaranteed Premier League safety and this defeat extended their winless run to seven matches.
Mauricio Pochettino faced the task of lifting his side following their hugely disappointing FA Cup semi-final exit a nine days previous.More news: Apple results to reveal iPhone X problem
Harry Kane got the goal and inched slightly closer to Mo Salah in the race for the golden boot.
'Of course, I think he showed he is courageous, performance, quality he showed he is one of the best in the world, no doubt.
Speaking to Sky Sports, he said: "I feel good".
Victor Wanyama, meanwhile, has started just five Premier League games this season after a knee injury suffered in preseason and Pochettino will also hope to use preseason to try to restore the Kenyan to last season's levels, when he one of the most consistent midfielders in the country. "I would like to have played better over the last few games but so would the team".
Spurs could go a long way to booking a third successive season of Champions League football when they host Watford on Monday. "I am not afraid to say so".More news: Lea Michele gets engaged to boyfriend Zandy Reich