For those unfamiliar with kinesiology, the "Sports Bra" has been quite the extreme outlier. As strange as it may appear to footballers, it has a function in
Footballers don't 'wear bras' - sporting reasons for under-shirt clothing explained
Why do male footballers wear bras?
Why do some male soccer players wear something that looks like a bra? - Quora
5 things we learned from the Scottish League Cup final - Eurosport
football - What is the sports bra looking thing soccer players wear? - Sports Stack Exchange
Why do some male soccer players wear something that looks like a bra? - Quora
Why Do Men's Soccer Players Wear Sports Bras?
Explained: Why are footballers wearing 'sports bras' at FIFA World Cup? – Firstpost
What do footballers wear above their jersey and why? - Quora