Erik Gustaf "Berka" Bergqvist (20 June 1891 – 17 February 1954) was a Swedish water polo player and freestyle swimmer who competed in the 1912 and 1920 Summer Olympics, as well as an international footballer. He was part of the Swedish water polo teams that won silver and bronze medals, respectively. In 1912 he also competed in the 100 metre freestyle. As a swimmer and water polo player, he represented Stockholms KK. Besides water sports, Bergqvist won a Swedish football title with AIK as a goalkeeper. He also football played for IFK Stockholm.
https://en.wikipedia.org/wiki/Erik_Bergqvist