Completely forgot about Del Potro and thanks for the info about Ward. Has to a recirpocal arrangeent but one has to wonder why they are doing it? There doesn't really seem to be any notable benefits for ether side unless this is just one agreement of many between TA and LTA.
I guess it would make sense in some ways. Both nations are doing fairly poorly when compared with their illustrious pasts so they're trying to help each other out in the rankings? I wonder what else they could do to help each other though, other than exchange info about youth programs etc
There is also a deal with the USTA and French federation but that's just for the slams.. it must kind of suck if you're not from those countries but it does make sense. It's also interesting that none of the slam nations have had a slam winner since 03, but that's all off-topic.