What happens when the arena timer runs out?

I've noticed all my battles in the PvP arena have this 5 minute timer sitting menacingly in the center top.

This seems like an easily testable question, but I was unable to find anyone who had, and I'm unwilling to spend one of my so-heavily-limited arena attempts sciencing this.

What happens when the timer runs out?


Solution 1:

Nothing too exciting — the match ends in a draw.