Stephen J. Press,DC, PhD, a 4th generation American, was invited in early 1991, by Nicholai Rusak, then Minister of Sport of what was still the Soviet Union, to serve as Chief Physician for their Winter Olympic Team in Albertville, France in 1992.
Naturally, no one knew then that the USSR would break up before the Games. This whole scenario was of course, unprecedented, and required the permission of then President Geo. H. W. Bush, for Dr. Press to represent them and not lose his US Citizenship as an agent of a foreign government. Thus when the team actually marched into Albertville, the Soviet Union had disintegrated, and was 15 separate nations, by that time called simply the "Unified team" (сборная команда). This means that Dr. Press was also the only doctor in Olympic history to have been Chief physician for 15 nations at one Olympic Games!