Perfect for athletes who must drop a sport, this goodbye letter notifies the coach and team of the departure.
I have been a member of your team for the last {amount of time} and team captain since {date}. I hope that that speaks to how much I love this sport and how much fun I've had being on this team.
Unfortunately, this year I have to focus on {my studies/the SATs/the chess team, etc.}. I wouldn't be resigning from {sport} if it weren't important to my future studies, and I hope you all understand.
It's difficult for me to leave so many great people and such a wonderful coach. Look for me at every game. I'll be the one painted crazy colors and cheering in the bleachers.