We have a match this weekend and due to a rash of last minute injuries, we might end up being a man short. So we might have to default a line. Do we have the choice between defaulting #2 singles or defaulting #3 doubles? We'd rather default the singles so that it doesn't deny an additional person the chance to play. As far as how to handle the exchange of lineups with the opposing captain: we'd prefer to be up front and list the default on our lineup, rather than pretending that we have someone showing up and then pretending that the person no-showed. But: We are playing at home, and the team we are playing has some history of defaulting lines, especially when playing away. What happens if they are missing players as well? If we've already listed the default on the lineup, and they have not (they have players listed), then do we still forfeit the line even if their player(s) don't show up? Are we better off putting someone's name down on the lineup anyway, knowing that they won't actually be there? Finally, what happens in terms of the match outcome if both teams default a line? How is the score registered?