Milan v Arsenal background | UEFA Europa League | UEFA.com
Andrey Arshavin's goal completes the Arsenal recovery against Barcelona | Champions League | The Guardian
Remembering the Arsenal Champions League starting XI that should have ended football
Squawka on Twitter: "ON THIS DAY: In 2011, Arsenal beat Pep Guardiola's Barcelona 2-1 at the Emirates in the Champions League: 26': ⚽️ David Villa 78': ⚽️ Robin van Persie 83': ⚽️
What happened to Arsene Wenger's infamous Arsenal Champions League XI vs Olympiacos in 2011? - Tom Canton - football.london
2011–12 Arsenal F.C. season - Wikipedia
Barcelona v Arsenal - in pictures | Football | The Guardian
Barcelona 3-1 Arsenal (Agg 4-3): Messi runs the show again as controversial Van Persie red card ruins Gunners' Champions League dream | Goal.com UK
VERMAELEN, Thomas - UEFA Champions League 2011/12 - Arsenal FC
2011 UEFA Champions League: Five Lessons We Learned from Arsenal vs. Barcelona | News, Scores, Highlights, Stats, and Rumors | Bleacher Report
BBC Sport - Football - Barcelona 3-1 Arsenal (agg 4-3)