Kane netted a first half brace while Son added a third goal in the second half as Spurs thrashed Arsenal 3-0 at the Tottenham stadium on Thursday night.
Kane opened the scoring in the 22nd minute from a penalty after Cedric hacked Son to the ground following a floated cross from Kulusevski.
11 minutes later, Son was involved again as things went from bad to worse for the Gunners.
They were reduced to ten men when Rob Holding received his matching orders after two yellow card offences in the space of nine minutes.
Spurs capitalised on the numerical superiority to double their advantage four minutes later through that man again, Kane, who was at the right place and time to head home a cross from Son to put Spurs 2-0 at the break.
Whatever Mikel Arteta told his team at the break was clearly not working as Son quickly made it 3-0 minutes after the restart to end any hopes for a comeback for the Gunners.