How do you reserve a player in PvP?

[Zbootyzzz]

I did ask my freind and it wasn't full so how do you reserve a player in PvP
-Zbootyzzz

[CallMeOops]

Not sure, Don't really pvp could be due to them having a party, which reserves the spaces?

[iacito]

If someone joins the game and doesn't choose a team, it will appear as reserved (even if you see the join button).

[Alhuntrazeck]

That^
Or your inventory could be full