Audio announcement when the game starts loading

When I'm setting up a multiplayer game, I often go do something else for a few minutes while I'm waiting for the connection to be established.  Sometimes I don't notice that the game is starting and I have to run back to the computer when I hear "Fight!".  It would be nice if there was an announcement just at the start of loading the map, when matchmaking was done.  Could be something like "Entering the arena".