Some Greeks, though, used Facebook to chide Papachristou for disgracing her home country.
"You made a serious mistake and unfortunately paid with the most exhaustive manner. Perhaps the punishment seems excessive," said one comment. "But you should know that Olympic Games and the Olympic idea [have] political and diplomatic value for the Greek state…"
Papachristou's expulsion is a blow to the Olympic ambitions of a country still reeling from a financial and currency crisis that has led to global embarrassment and threatened the stability of the euro.
Papachristou was one of 105 athletes in 16 sports on the Greek Olympic team.