This article details the 2010–11 UEFA Europa League play-off round.
Each tie was played over two legs, with each team playing one leg at home. The team that had the higher aggregate score over the two legs qualified for the next round. In the event that aggregate scores finished level, the away goals rule was applied; i.e. the team that scored more goals away from home over the two legs progressed. If away goals were also equal, then 30 minutes of extra time was played, divided into two 15-minute halves. The away goals rule was again applied after extra time; i.e. if there were goals scored during extra time and the aggregate score was still level, the visiting team qualified by virtue of more away goals scored. If no goals were scored during extra time, the tie was decided by a penalty shootout.
^ abPlayed in Piraeus at Karaiskakis Stadium as AEK Athens's Olympic Stadium was deemed unsuitable due to the quality of the playing surface.[2] Initially, it would be played in Athens at Nea Smyrni Stadium but it was vandalised by Panionios ultras who have a fierce violent rivalry with AEK Athens's ultras. As a result of this, UEFA decreed that no AEK fans would be allowed to watch the match inside the stadium.[3]
Note: Between the 1999–2000 and 2008–09 seasons, the competition was still known as the UEFA Cup. All seasons are included following the competition's absorption of the Cup Winners' Cup.