Which swimmer stopped the USA men's team from a clean sweep of Olympic swimming gold medals in 1976?

I remember David Wilkie, we even have a plaque up in our swimming baths, which says he opened it!! brilliant guy

i know a support worker called David

remember him cos of his moustache, the famous moustache.. sorry David if you read this?!

Hence the expression “ tumbling over my Wilkies “ ! 👀.... Its a Scottish thing 😂🤣😂