Question: The 2005–06 Serie A season for Inter Milan had a single European player on the roster during the Champions League group stages, that of the retired footballer of what nationality? 
Sentence (from "2005–06 Inter Milan season"): During the Champions League group stage, the side managed to have a line-up of 11 foreign players on the pitch: the only european was Luís Figo, playing the second time.
Relevant evidence: Yes