London, July 13 : Experts have warned that following in the footsteps of soccer ace David Beckham by wearing tight briefs can make men infertile.
Sales of tight briefs have risen sharply following the unveiling of posters of the former England captain modelling a new range of pants for Armani.
Thousands of Brits are swapping loose boxers for barely-there pants after seeing the ads.
However, experts have said that copying the footballer's taste in underwear can cause infertility.
"David Beckham has had his children, but would-be fathers can't get away with it," the Daily Star quoted Dr Allan Pacey, of Sheffield University, as saying.
"Very tight pants damage fertility. The reason you have testicles outside the body is that they stay cooler there," he added.