Toon Aerts react to Bossuyt positive test: "I knew this was going to happen and warned about it in my own announcement"
Cycling
Toon Aerts, who tested positive for Letrozole last year, has immediately reacted to the news that Shari Bossuyt has tested for the same substance. The cyclocross rider shared an update and his thoughts on what he believes is an unfair situation.
“Actually, I knew this was going to happen and warned about it in my own announcement. If this could happen to me, anyone can," Aerts said in a long message shared on Twitter. "I have never taken any risks with medication and supplements. And yet I get involved in a doping file… With this knowledge, I had to wait for the next victim. We are one year later. I'm still deep in the misery and there's the next case. I can well imagine what Shari is going through right now."
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At the end of the 2021-2022 season Aerts tested positive for the substance and has been given two years of suspension. Throughout many months he attempted to prove his innocence but without success. Letrozole is a substance which blocks production of estrogen, hence boosting natural testosterone levels, and at the time being it is not known how it can be contaminated.
"This shouldn't be happening! Another athlete, a human being, who will go through a deep valley with her whole family. Without having done anything wrong, just like my family and I. My emotions have turned to a kind of anger lately, although I try not to worry too much about it," he continued. "I've done everything I can to prove my innocence, but I'm getting nowhere. The days are ticking away, and every day that passes is a step. The days go slow, too slow. I still have no idea about my future as a rider and a person.”
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The Belgian has since taken up a job as a physical education teacher in Belgium, whilst he continues to ride in order to stay fit, eyeing a return to the sport as soon as possible. “At the moment I find support at the school where I started teaching. Students and colleagues see me as a normal person, not as an athlete in trouble. I hope that Shari will soon find something to hold on to in her life."
"Not two without them is the saying and I fear there will be more victims. It's inevitable that more athletes will see their careers slip through their fingers while working as professionally as I did. I hope that the authorities will face the problem and gather more information about what is happening to us," he concluded.
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Rúben SilvaEditor-in-Chief
A founding contributor to CyclingUpToDate since its launch in January 2022, Ruben Silva has played a central role in shaping the site’s editorial direction and long-term growth. Before joining the project, he built his experience through independent blogging at Echelons Hub and by producing race previews for Ciclismo Internacional, developing a strong analytical voice rooted in daily engagement with professional cycling.
Beyond editorial work, he has been closely involved in the expansion and coordination of CyclingUpToDate’s wider network, helping establish and support sister platforms across multiple languages. This includes ongoing collaboration with CiclismoAlDia (Spanish), CiclismoAtual (Portuguese), WielrennenUpToDate (Dutch), and RadsportAktuell (German), contributing to a shared editorial vision and consistent international coverage.
He also helps oversee editorial governance across the network, setting standards for accuracy and consistency and coordinating updates or corrections when needed.
Originally from the Porto metropolitan area in Portugal, he holds a bachelor’s degree in Geography. His path into cycling journalism was shaped not through formal media training, but through independent reporting, community engagement, and sustained on-the-ground involvement in the sport.
Over the course of his career, he has conducted approximately 100 interviews across road cycling and cyclocross, ranging from one-to-one conversations and online formats to press conferences and on-site pre- and post-race coverage. His interviews include leading riders, team managers, and prominent figures within cycling media: Tadej Pogacar, Jonas Vingegaard, Mathieu van der Poel, Primoz Roglic, Wout van Aert, Joao Almeida and Tom Pidcock; managers like Patrick Lefevere and Joxean Matxin; and YouTube personality Bryan Kennedy (BKXC)...
Within 18 months of launch, he helped grow CyclingUpToDate’s English-language platform into one of the most-read cycling news websites, built entirely from the ground up. As both a professional journalist and lifelong cycling enthusiast, his focus remains on delivering accurate, timely, and well-contextualized coverage.
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Front24208-11-2026
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