You must have "Full Access" or "Limited Access - HQ Tools" permissions to add players and staff.
Step 1: Get to TeamCenter
By using your SE Bar.
From an individual Team Page on a site.
Step 2: Remove Players or Staff
On the left-hand navigation, choose the Roster tab.
Under the Roster heading, choose either the Player or Staff sub-tab.
On the left side of the rostered profile, check the box next to their name.
You can check more than one rostered profile.
Click the X Remove button.
Click Remove Players or Remove Staff to confirm.