They don’t come much worse than this; ex-pro rider from the Netherlands, Teo Muis, doped his teenage son Jesse while still a junior. The latter was handed a four year ban which was reduced to two because the court ruled he took the drug thinking it was a multivitamin.

An ex-professional cyclist from the Netherlands has been handed a lifetime ban from any involvement in cycling after he was found to have given his underage son doping products.

The Disciplinary Committee of the Institute for Sports Law suspended the 50-year-old Teo Muis because of the provision and administration of nandrolone to his son Jesse, who was a junior at the time.

But as the court ruled he took the drug thinking it was a multivitamin, his initial four-year suspension was reduced to two.

The case dates back to November 2015 when the Dutch cycling federation posted a statement on its website about a junior rider who had missed a doping control test.

The rider was positively identified as Jesse Muis and he was promptly suspended for four years.

And earlier this week another post on the federation’s website concluded that his father Teo will also be sanctioned, albeit far more heavily.

And Muis again, this time in action during a criterium in the Netherlands last season.

“The defendant is suspended by a ruling of the Institute for Sports Law with immediate effect for life and, therefore, must in no way (be) concerned or take part in competitions or training,” the institute’s statement said.

“The person concerned, in November/December 2014, at least at some point prior to a doping control which took place in 2015 in his capacity as facilitator/coach nandrolone administered to his then minor son, who is also a member of the National Federation.”

Nandrolone is a performance-enhancing drug on the sport’s governing body’s prohibited list and administration of such a prohibited substance to a member constitutes a breach of Article 10 of the Anti-Doping Rules.

Muis senior tried to stop the publication of the ruling, and his defence team made the argument that the ruling would “mean a heavier punishment, especially for his son, with far-reaching and undesirable consequences for relations within the family”.

Teo Muis turned pro in the 1990s and at 21 years old joined the Spanish team Orbea.

Ironically, he admitted to being offered drugs during his career but refused, apparently.

“Doping? Not me. It is offered to me by teammates. But I’m never discussed. I was too afraid I would be caught and I did not want them,” he said while still racing.

“Furthermore, I do not want to lose it. Lately, there’s been too much about called.”