That is according to the striker’s former academy coach at Arsenal, Alex Welsh.
Tottenham’s star goalscorer was released by their north London rivals at the age of 11.
Before turning his attention to become a forward, Kane started off as a goalkeeper at a young age.
That knowledge of shot-stoppers and drive to prove Arsenal wrong was crucial in his development, Welsh feels.
He told the BBC: “I first met Harry at Arsenal in the academy and he was a very competent goalkeeper.
“But his real desire was to score goals.
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“I think leaving Arsenal made Harry more driven and more determined to make it”
Dave Bricknall
“And I’m absolutely convinced the reason why he’s such a clinical striker, he intuitively knows what a goalkeeper doesn’t like.
“He shoots early before the goalkeeper gets set, he shoots round players, through legs.
“I think leaving Arsenal made Harry more driven and more determined to make it.”
Dave Bricknall, who coached Kane at Ridgeway Rovers before he moved to Arsenal, added: “At the time I believe he was second top scorer for Arsenal behind Benik Afobe.
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“And then for some reason they’ve decided at 11 years of age that they didn’t want him anymore.”
Kane proved the hero tonight in England’s World Cup opener in Group G too.
The skipper scored twice and headed home a late winner as England saw off Tunisia 2-1 in Russia.
Kane said after the match: "It's a World Cup, you go to the last second. I'm absolutely buzzing."