Manchester United manager Ole Gunnar Solskjaer believes a Champions League comeback at Barcelona would be a greater achievement than the club's last-16 miracle against Paris Saint-Germain.
United will head to Camp Nou needing to overturn a 1-0 first-leg quarter-final deficit following Wednesday's defeat to Barca at Old Trafford.
Luke Shaw's 12th-minute own goal left United with another uphill battle away from home, however, Solskjaer said the Red Devils can complete a great escape – like they did when the club came from 2-0 down to stun PSG 3-1 in Paris last month.