A tiny study in Spain (of 15 people) found a small drop in sperm quality after elite cycling.
The BBC write a sensationalised article saying elite male cyclists should get their sperm frozen based on this one study
A British scientist is asked to comment and clearly takes the bigger picture - "Dr Allan Pacey, senior lecturer in andrology at the University of Sheffield, said there had been a lot of interest in cycling and male fertility but results had been mixed."
Meaning this particular Spanish study should be taken with a pinch of salt and there is no evidence for a relationship between male fertility and elite cycling.
He (ie Dr Pacey) added that 40 years ago cycling was much more common but there is no evidence men then were less fertile
So in summary - non-story, but typical of science reporting.
If Simoncc was here, he'd be hopping mad that
his licence fee had paid for this article.