The South Korean has struggled to produce his best form consistently.
The 23-year-old immediately endeared himself to the Spurs fans and had a good start to his career at White Hart Lane.
But he has had to battle with injuries throughout the middle part of the season and has struggled for his best form recently.
But one former Tottenham player believes the club must give him a chance to shine.
"Spurs should definitely keep him, as he will get better.
"He started really well and his energy helped the team. I've also heard that he has become a real favourite in the dressing room and is a great guy to have around.
"His best position is probably just behind a front man, like a free role.
"Sometimes his final ball in the final third of the pitch could be better but that will come with age."
Son has played 34 times for Spurs this season but has found the net only six times for the club and only twice in the Premier League.
At the moment he finds himself behind the likes of Nacer Chadli and Erik Lamela in the Tottenham pecking order.
Hopefully however he can now use his relative freshness in the latter stages of Tottenham’s season – as the club look to beat rivals Leicester City to the Premier League title.