This article forms part of our Profit Players feature series, which is where Football Transfer Tavern takes a look at how well a player has fared since being signed or sold, using statistical figures and statements from pundits to prove how good of a deal the club managed to achieve.

Jose Mourinho has not had the best of luck during his first few months as manager of Tottenham Hotspur.

The Lilywhites did get off to a good start under the former Chelsea boss, with them winning five of their first seven games, but the injury to Harry Kane was a huge blow. The England captain scored 17 goals in 25 games before the issue in January, and he has not played since.

That was confounded by an injury to Son Heung-min. The South Korea international has been in stunning form so far this campaign, managing 16 goals and nine assists in all competitions - combined, he has managed six more than Kane.

He has been an inspired buy by Daniel Levy. Tottenham paid £22m for him in 2015, and he has repaid that fee and then some. Other than his debut campaign, he has scored at least 10 goals in the Premier League every year, whilst he has at least 10 assists in each of his last two campaigns.

As well as his incredible performances, he has also proven valuable off the pitch too. Indeed because of him the club now have a strong fanbase in South Korea, which ultimately helped them secure a two year deal with Khumo Tyre in 2016, a big financial boost for Spurs at the time.

Added to that he now has the biggest social media following of any Asian athlete (CNN) and was named 30th in a list of the 50 most marketable sports people in the world in 2019 (SportsPro).

The 27-year-old's Transfermarkt value perfectly illustrates how much his stock has risen since he made the switch to the north London outfit. As it stands, he is currently worth £57.6m, which is the joint-second most at the club after Kane. He has also proven versatile, playing both on the wings and at centre-forward when needed - all in all, he is a player that Spurs cannot do without.

Let us know what you think of Son below!