Speech for 1min for ASL on - Sports and sportsmanship
A few pointers are given at the link mentioned below that will help you to frame your answer.
https://www.meritnation.com/ask-answer/question/letter-to-brother-asking-him-to-take-part-in-games/informal-letter/8320219
https://www.meritnation.com/ask-answer/question/points-on-importance-of-sportsmanship/english/7834249