MANCHESTER, England -- Paul Pogba has told his Manchester United teammates they need to be "killers" at Camp Nou if they want to progress in the Champions League.

United lost their quarterfinal first leg 1-0 at Old Trafford on Wednesday but Pogba believes Barcelona will have doubts after Ole Gunnar Solskjaer's team staged a dramatic second-leg comeback against Paris Saint-Germain in the last round.

"We are 1-0 down and now go to the Nou Camp but we believe chances will come over there," Pogba said.

"We have to keep believing. It is a Champions League game and we know we can hurt them as well as they can hurt us. We have to avoid giving them chances and be killers in front of goal.

"Probably Paris will be in their minds for sure because they saw what we can do against PSG."

Luke Shaw's early own goal, after deflecting in Luis Suarez's header, was the difference at Old Trafford.

And although United did not manage a shot on target -- they have scored just one goal at home in five Champions League games this season -- Pogba insists they have nothing to fear next week.

"We saw a team we can beat," Pogba said.

Barcelona were eliminated at this stage last season, losing 3-0 at Roma following a 4-1 win in the first leg.

"If you don't believe that then you just let them go through. We believe we can beat them. We are Manchester United, they are Barcelona but we are Manchester United and we play in the Champions League like they do and we can go through, of course.

"It is one leg gone and now we have to give everything in the second one."