Jamaican Olympic triple gold medallist Elaine Thompson-Herah is going up against an American football legend, an international tennis, a contender for a Formula 1 championship and a female Irish jockey who created history for the BBC’s World Sport Star of the Year 2021 award. Fresh on the heels of being named Female World Athlete of the Year, she was announced as one of the six nominees for the award that goes to the world sport star whose sporting achievements have most captured the public’s imagination during 2021. The other contenders are: American football legend Tom Brady who this year ex…