Harry Kane (right) of Tottenham Hotspur celebrates with Kyle Walker-Peters of Tottenham Hotspur as Erik Lamela of Tottenham Hotspur looks on during the Premier League match between Tottenham Hotspur and Leicester City at Wembley Stadium on May 13, 2018 in London, England.
Tottenham, who have finished the season as London's top team for the first time in 23 years, will begin life in their new 62 000-seater stadium as a Champions League club again.
Pochettino once again refused to be drawn on whether he will remain at Spurs' helm next season, after his side's 5-4 win over Leicester at Wembley sealed a third-place Premier League finish. Liverpool in CL Liverpool cruised back into the Champions League next season by easing past Brighton 4-0 on Sunday as Mohamed Salah set a new Premier League record of 32 goals in a 38-game season.
However it was Vardy's worldwide team-mate Kane who had the final say with his curling effort. Lucas Moura caught Danny Simpson dawdling in possession and Kane picked up the loose ball to race free and place a left-foot shot past Eldin Jakupovic.
Leicester, though, had not come for a party and regained the lead in the 16th minute when Mahrez lashed home from the edge of the area after Victor Wanyama was dispossessed.
Only a brilliant stop from Hugo Lloris kept the deficit at one as the France goalkeeper produced a fine one-handed save to keep out Demarai Gray's effort.
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Manchester City manager Pep Guardiola says Kyle Walker can be even better if he works on key areas of his game. Southampton stays up with a win or draw, while they can also lose and likely still survive.
The manner of the game may have appeased supporters - they were treated to nine goals after all - but Pochettino will not have been happy at Vardy's impact.
There was absolutely nothing Lloris could do about Kelechi Iheanacho's strike that did extend Leicester's lead two minutes after the restart. It was level in the 53rd when Lamela's shot went in off Fuchs for an own-goal.
Leicester did not give up the fight.
Vardy's expertly taken second appeared to have earned Leicester a remarkable point, but England team-mate Kane had the last word to seal a scarcely believable three points with his 11th Premier League goal against Leicester - more than any other opponent he has faced.
Spurs scored a second goal in a matter of minutes to make it 3-3.