Note 47: Greek club Olympiacos Volos, who had reached the play-off round, were excluded from the competition by UEFA on 11 August 2011 for their involvement in the Koriopolis match-fixing scandal.[4] UEFA decided to replace them in the play-off round with Differdange 03 from Luxembourg, who had lost to Olympiakos Volos in the previous round.[5]
Note 50: Celtic lodged protests over the eligibility of a number of the Sion players who participated in the two legs of the play-off round, which Sion won 3–1 aggregate (first leg: 0–0; second leg: 3–1). The UEFA Control and Disciplinary Body accepted the protests and decided to award both matches to Celtic by forfeit (3–0). As a consequence, Celtic are qualified for the UEFA Europa League group stage.[7]
Note: Between the 2004–05 and 2008–09 seasons, the competition was still known as the UEFA Cup, but is included as it followed a group stage—knockout phase format.