In a disturbing turn of events that should raise serious concerns about the state of international sports, Irish Olympic swimmer Daniel Wiffen found himself hospitalized after competing in the unsanitary waters of Paris’ Seine River. The 23-year-old athlete, who finished 18th in the men’s 10-kilometer open water event, was rushed to the hospital following his exposure to the polluted river, sparking outrage and raising questions about the wisdom of using such a historically contaminated body of water for Olympic events.

Despite his hospitalization, Wiffen had earlier made a mark in the games, winning gold in the 800-meter freestyle and bronze in the 1500-meter freestyle. However, his triumphs have been overshadowed by this alarming incident, which underscores the failure of French authorities to adequately ensure the safety of Olympic athletes.

In recent years, France has poured approximately $1.5 billion into efforts to clean up the Seine, a river that has long served as a dumping ground for all manner of human-made waste and runoff. But the reality is hard to ignore: despite these exorbitant efforts, the river remains a health hazard. Wiffen’s experience is a stark reminder that no amount of public relations spin can cover up the dangers posed by polluted waters.

Taking to social media, Wiffen expressed his disappointment at missing out on the chance to be a flag bearer, writing, “Thanks everyone who reached out. I’m incredibly disappointed to miss out on the opportunity to be flag bearer last night. Yesterday I rushed to hospital as I was very unwell with a bug that I am being treated for, and am feeling better now.” Speaking to the press, he candidly described the experience as “probably one of the worst things I’ve ever done,” adding, “But, yeah, I’m happy I did it.”

Wiffen’s ordeal was not an isolated incident. In the lead-up to the Paris Olympics, there were already significant concerns about the safety of using the Seine for outdoor swimming events. Paris Mayor Anne Hidalgo attempted to quell fears by swimming in the river herself on July 17, boldly claiming that “there is absolutely no athlete who has been sick because they swam in the Seine River.” Her reassurances now ring hollow.

Other athletes have openly criticized the river’s conditions. Dutch triathlete Rachel Klamer didn’t mince words, calling the swim in the Seine “disgusting” and describing the water as “dirty” with conditions that were “unfair.” Belgian triathlete Jolien Vermeylen echoed these sentiments, revealing that she “felt and saw things that we shouldn’t think about too much” while swimming under a bridge. She didn’t hold back, bluntly stating that “the Seine has been dirty for a hundred years, so they can’t say that the safety of the athletes is a priority. That’s bullshit!”

Canadian Olympian Tyler Mislawchuk also suffered after his swim in the Seine, vomiting ten times after the race. Despite pushing himself to the limit, he could not ignore the impact of the filthy water on his health, reflecting on his effort with no “what ifs” but with serious consequences.

As the Paris Olympics continue, these incidents raise serious questions about the priorities of those in charge. The health and safety of athletes should never be compromised for the sake of appearances or tradition. Yet, in the case of the Seine, it seems clear that the athletes’ well-being was not given the consideration it deserved. This failure is a black mark on the Paris Games and a stark warning for future Olympic hosts: safety must come first, no matter the cost.