Originally Posted by LawrenceOfTennis
Either Spain or US.
Spain has no real prospects after the current Armada. Nadal and Granollers are the youngest and there don't seem to be any promising youngsters. USA has Donald Young, Harrison, Kudla, McHale, Capra...
UK has Robson, Broady; Brazil has a few kids, France, lots of eastern Europeans (Berankis, Dimitrov, Dolgo etc) and you have Nishikori for Japan and also Rendy Lu (whatever happened to Yuki Bhambri btw) even Italy has Gianluigi Quinzi
Haven't heard about any Spanish kids coming up. There was one teenager who was hyped as the next Rafa but I've no clue what level he plays at now.