Son followed that assist with a drive that hit the post flush from 18 yards out.
The final whistle goes and Tottenham have run out easy winners here courtesy of goals from Son Heung-min, Harry Kane (2) and Christian Eriksen.
Doucoure turned the ball in with his hand as he stooped for a header but, with no video assistant referees in the Premier League, the goal stood and denied Southampton a first league win in 10 games. The South Korean converted a simple chance from Serge Aurier and then created a similar chance for Kane to score two minutes into the second half, albeit from a suspiciously offside position, to effectively kill off Everton who were terrible throughout.
Even with that caveat in mind, few teams in the world can keep up with Spurs when they're in the kind of effervescent mood we witnessed at Wembley today.
Unfortunately for Cenk Tosun, his first taste of English football will be remembered for all the wrong reasons from Everton's perspective.
The South Korea global was involved again as Kane netted his first of the game two minutes after the restart.
Tottenham Hotspur's Harry Kane celebrates scoring his second goal against Everton, who made him the club's record goalscorer in the Premier League (pic: John Walton/PA Images).
Rescuers Battle to Find Survivors of California Mudslides
More than 1,500 personnel were assigned to search-and-rescue and cleanup efforts in the area, which spanned about 30 square miles. The mudslide swept through the coastal community of Montecito on Tuesday morning, catching numerous victims entirely off-guard.
He continued: "There are a lot of numbers, but he can do everything because of his mentality and how he is - he is so professional".
"He's unbelievable, the way he's able to work, his willingness". He is always thinking to try to improve, improve, improve, score goals and improve for the team. Jordan Pickford will likely start in goal, with Jonjoe Kenny, Phil Jagielka and Cuco Martina all starting in defence and Ashley Williams may replace Mason Holgate in the center of defence.
Spurs eased in to the fourth round of the FA Cup with a 3-0 victory over AFC Wimbledon last weekend but their focus will be firmly on Premier League matters tomorrow.
Sam Allardyce: "Maybe I have a bit of responsibility by playing too much attacking-minded players and not as many defending-minded players".
"I am shocked and surprised that we performed as we did".
Everton have won only one of their last 43 Premier League away games against one of the "big six" (1-0 at Man Utd in December 2013) - drawing 15 and losing 27.
The opening goal came from a different source.
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