FC Sion v Celtic, 25 August 2011
| Score | 3-1 to FC Sion |
| Referee | David Fernández Borbalán |
| Competition | UEFA Europa League Play-off 2nd leg |
| Venue | Stade de Tourbillon, Sion |
| Attendance | 7,100 |
Despite losing this match and the tie 3-1 on aggregate, Celtic were subsequently reinstated to the UEFA Europa League Group Stages.
They were awarded two 3-0 wins for the play-off games after their protest was upheld by UEFA's Control and Disciplinary Body on 2 September 2011.
FC Sion were forced to forfeit the tie for fielding ineligible players.
3 FC Sion
Manager: Laurent Roussey
Goals:
Starting lineup:
Substitutions:
Cards:
On the bench:
1 Celtic
Manager: Neil Lennon
Goals:
| Charlie Mulgrew | 78 |
|
Starting lineup:
Fraser Forster
Goalkeeper
Daniel Majstorovic
Defender
Kelvin Wilson
Defender/Centre back
Charlie Mulgrew
Defender/Midfielder
Scott Brown
Midfielder
(captain)
Beram Kayal
Midfielder
Joe Ledley
Midfielder
KI Sung-yueng
Midfielder
CHA Du-ri
Forward
Gary Hooper
Forward
Georgios Samaras
Forward
Substitutions:
| James Forrest for Beram Kayal | 72 |
| Kris Commons for Joe Ledley | 88 |
Cards:
| Daniel Majstorovic | 2 | R |
| Scott Brown | 33 | Y |
| Gary Hooper | 81 | Y |
On the bench:
Goalkeeper
Lukasz Zaluska
Defender
Adam Matthews
Defender
Mark Wilson
Midfielder
Kris Commons
Midfielder
James Forrest
Midfielder/Forward
Paddy McCourt
Forward
Anthony Stokes