Despite it all, Kane remained patient and delivered in the first minute of stoppage time.
The match came as ties between Russia and Britain reach lows not seen since the Cold War, following the poisoning of the former double agent Sergei Skripal along with his daughter in England, as well as accusations of Russian interference in the Brexit referendum.
"I'm reeling it back a little bit and I'll just say we'll only win 2-0", he said.
England manager Gareth Southgate's overly cautious approach and his team's hesitance in front of goal resulted in a nervy 2-1 World Cup win over Tunisia rather than the comfortable victory their early dominance deserved. "One of the things Federation Internationale de Football Association said that they would look to stop at this World Cup was defenders ignoring the ball at set-pieces to merely hold or block opponents", he told the Daily Mail.
"It's competitive and that is really important because you can't step it up going into matches but they won't need to step it up tomorrow from what they have been doing in training because that level they have been hitting is high".
"But I think the performance was very good, we created a lot of clear-cut chances in the first half, as many as I remember us having".
"The offences were so clear that I was surprised, and disappointed, that the Brazilian referee Sandro Ricci in the VAR studio in Moscow didn't get involved. As with everything it needs improving and I think it will improve in time".
NICOLAS ASFOURI GettyImages
Euro 2016 ended in humiliation for Kane and England with a loss to Iceland in the last 16, but the team has been transformed by Southgate.
VAR was first-ever used at the world football tournament on Saturday to award penalty kicks during France vs Australia and Peru vs Denmark matches.
"It goes to 1-1, momentum changes a bit, so I thought we recovered well from that", he said.
The ineffective Sterling gave way to Marcus Rashford with just over 20 minutes to go and the Manchester United man nearly fashioned a chance straight away with a jinking run into the box.
Danny Chadwick aged 27, from Tong Moor said: "It was unbelievable but they left it late".
"I think what this (wreath laying) demonstrates more than anything is that the enduring nature of the relationship between the United Kingdom and Volgograd outweighs any political ups and downs", Skoll said.
Hassen saved acrobatically but Kane was on hand to tap home the rebound with his right foot and open his World Cup account.
Morocco v Iran 15 June 2018
The match in itself had far from the smoothness of the first half, with injuries and substitutions punctuating the entire half. But, despite Morocco having 68% of possession and 13 shots, Iran picked up the victory.