[Nexus Blitz] The Prize Fight event can be rigged by the enemy

During a recent match I had, the enemy Jhin set down a load of his traps before a Prize Fight, which gave his team an unfair advantage. And in another match, Heimerdinger had his turrets down and they were able to fire on my teammates for a short bit as their round started, despite that it wasn't his turn.

Now, while you could say "Do the same thing", it's still cheapass. To remedy this, I suggest that the arena in Prize Fight be a section of the map that is otherwise inaccessible, so that no one can rig it with traps beforehand.