what sport, please be more specific
athletics
Pat Cash was a champion in the sport tennis
discis
he was the champion of bicycling!
Her sport is swimming.
According to a search of their website Champion is indeed sold at Sport Check.
Andrew Johns was a champion in Rugby.
In the USA, the world record champion in sport stacking is William Orrell. He has set multiple world records in sport stacking competitions.
What sport
Mark Richards is a four-time world champion in the sport of surfing.
Hailey Lewis is a world champion at swimming.