By Jamie Spencer Tottenham Hotspur are set to tie down Son Heung-min for an extra year, virtually erasing the possibility that the club captain could head for the exit door this summer. Son took on a new level of responsibility in 2023/24 following Harry Kane’s departure and scored 17 Premier League goals to match his second best single season tally in the competition. But the South Korean icon will turn 32 before next season begins, with his age enough to keep the speculation over a potential move to the Saudi Pro League burning. Son has will soon enter the last 12 months of the long-term dea…