There's no "I" in team.
You don't always need to be the best player or score the highest. The best team members know when to lead, when to support others, and when to stay on the sidelines. From a team player's perspective, the team should always be first not the individual. Everyone needs to learn how to be a great follower in order to be a great leader.
Being a leader is not about talent, but instead about being the best teammate possible. Most athletes do not place enough value on being a glue guy, and making everyone one else around him or her better. Worry less about how YOU can be better, and start worrying about how you can make your team better.