btw: having no country on one's ranking page seems to be no problem. look at #1110 named kenny bun. he also has no country which you can see because of the empty brackets. and also on the profile page of him there is no country: http://www.atpworldtour.com/Tennis/P...Kenny-Bun.aspx
He does. It's Camboda.
Someone may have misspelled that and the system probably couldn't find the three letter shortcut and the flag.