Murray has kept his thoughts about the referendum to himself but last night revealed he has been following the build-up closely and watched 45 minutes of the second debate between Alex Salmond and Alistair Darling.
"If Scotland became independent, then I imagine I would be playing for Scotland," he said in New York, after qualifying for the third round for the US Open.
"I haven't thought that much about that yet because I don't think it's looking too likely that it's going to happen. But if it did happen, then it would be pretty much the first time in my life that I would have ever (had the chance to play for Scotland).
"Ever since I started travelling to tournaments since I was 11 years old, I've always played under Great Britain. That's normal to me."