From the Online menu, jump into the lobbies to find an opponent or create an unranked match and challenge somebody. There aren't many people playing any more, so finding a booster might be the best way to go.
Set the game length to two minute halves so that you can earn this quickly and easily. You don't need to win, just finish the match without exiting early. Both players will unlock the Achievement at the end of the game if they don't have it already.