It's racist unless you're a German athlete..
The tweet attributed to German Olympic flagbearer Natascha Keller read: "The Olympic village is filled with barefoot Greek athletes. As soon as we see them we are afraid that they will ask us for loans".
It surfaced on Greek blogs earlier on Friday and provoked outrage from Greeks who left angry messages on the player's Facebook page.
"Whoever is behind this fake should be ashamed. It's a cowardly act, which deserves no further comment," German Olympic mission chief Michael Vesper said in a statement.
Neither Keller, 35, who won gold in Athens in 2004 and will play in her fifth Olympic Games in London, nor her coach Michael Behrmann were available for comment.