Man United boss says his forwards need more ammunition in order to overturn their 1-0 first-leg quarter-final deficit following Wednesday's defeat to Barca at Old Trafford.
Manchester United manager Ole Gunnar Solskjaer is convinced the Red Devils can complete a comeback against Barcelona at the Camp Nou.
The Red Devils were beaten 1-0 in the first leg of their quarter final clash against the LaLiga champions on Wednesday night, thanks to a Luke Shaw 12th-minute own goal.
However, Solskjaer was optimistic after the match as he said a comeback at Barca would be a greater achievement than their last-16 success over Ligue 1 side Paris Saint-Germain.
"Of course, the PSG performance gives us hope and belief that we can do it," the Norwegian said in his post-match news conference.
"But we know we are playing against probably the favourites and going there will be a challenge.
"It'll be a greater achievement, winning that one, because of the history of Barcelona, they're not used to losing at home. But we can do it.
"We know we can carry a goal threat, whether it's [Romelu] Lukaku, [Marcus] Rashford, [Anthony] Martial, whoever playing up there, we have to provide a bit more ammunition for them."