#2 Paul Pogba
The French star dropped an average performance against Barcelona at Old Trafford which saw the likes of Scott McTominay dominate the headlines the next day. Amid rumours of Paul Pogba's desire to leave the club, the 26-year old will be desperate to show his calibre once again at the biggest stages.
After winning the World Cup, Pogba endured a tough few months under former United boss Jose Mourinho but Solskjaer's arrival managed to bring the best of out of the Frenchman. With 16 goals and 11 assists in all competitions, Pogba has proven himself to be an asset and one of the best players in the Premier League.
On his day, Pogba remains one of the players who can shape the tie with his ability to dominate proceedings at the centre of the park. Against a team like Barcelona, the midfield battle is always a key part and if United can pull off the herculean task, Pogba will surely play a significant part.