Can manutd pull surprise against Barcelona

Source; all football
The champions league continues this week and results will be pouring in from all sides.
Manchester united travels to camp nou to face Barcelona in their second leg match in the champions league after losing by a goal in the first leg.
Barca has the upper hand in the game as they are very strong in their home and with an away win already it's going to be very difficult for manutd to qualify.
Anything is possible in football as they is still hope for united to turn things around as they did against PSG.