Heys guys! Im have been study UML and im trying to to design the use case diagram of a problem.

Lets supose my app consists in this:

Two Requesites: - create teams - create players

This is the deal: A user can create a team, and after create a team he can create players for that team(not required). But in this app there are multiple users, and a user can create a team and other user can create players. The only constraint is that to create players must exist alreay a team. I research and i end up a little confuse. If i get the concepts of relations on use case diagrams right, i think i should have the folowwing two use cases:

[use case - create team] <-------extends---- [use case - create player]

I need opinions,Is this the proper solution? or should i have two not related use cases?

Thanks in advance, and im sorry my english.