The team captain has the ability to kick a player from his or her team. In order to kick a player, follow these steps:
1. Navigate to https://play.gll.gg/myteams
2. Choose the team in question
3. Press the button that says "Manage Members"
4. Press "Edit"
5. Choose "Kick"
6. Confirm your decision. Please make sure you are 100 % sure, since kicking a player may cause your active parties to become uneligible for further competition.
Please note that only the Team Captain has the ability to kick players from teams.