Sounds like Novak Djokovic, Rafael Nadal and Juan Monaco had a lot of fun over weekend in Buenos Aires sending David Nalbandian off into the sunset, although he's kind of seemed half-retired at times throughout his career:
Novak writes:
I'm glad I was part of the farewell of David Nalbandian -- a great player that we will miss on tour. I cannot forget to mention how much fun Rafa, Pico, David and I had these few days Argentina is beautiful! I even danced Tango