In fact it's the director of "Flanders Classics", Thomas Van Der Spiegel. A ex-basketballplayer. Unfortunately, the man has a hand in different sport organisations. He worked after his sportcareer for the very dubious Optima bank. Where he and his boss Jeroen Piqueur scammed hundreds of customers. Customers who were often (ex) athletes. Who invested their money earned during their career in it... and saw this partially or completely disappear.
.
The bank was closed, went bankrupt, but only the big boss Piqueur was prosecuted. Van Der Spiegel then turned its tentacles to various sports organizations. Making big money, manipulation of sports organizations and competitions are now his specialty.
So, not only a slender man, but also a slenderman.