Manchester United: 5 key players who should be kept at all costs next season

#4 Marcus Rashford

Marcus Rashford is Manchester United's biggest asset

The English starlet has been Manchester United's hottest prospect this season. He is now one of the most talented and most valuable young strikers in Europe. It is no secret that the 21-year-old has been subjected to numerous speculations due to interests from the world's biggest clubs such as Barcelona and Real Madrid.

Although Jose Mourinho had benched him several times in the past, the youngster has now regained his confidence as he becomes one of those few players who has improved the most under Solskjaer. The Manchester United academy product has scored 12 times with 9 assists in all competitions.

He will surely be one of United's most important projects for the future. However, his contract will expire in 2020. Even though the Red Devils have an option to extend his contract for another year, it might be wise for the club to do everything possible to give him a lucrative long-term deal.

#3 Ander Herrera

Herrera has surprised many with his resurgence this term

The Spaniard's future at the Old Trafford had seemed to be worse than ever at the beginning of the season. He was nearly nowhere to be seen and Mourinho even played him as a center back during a home match against Tottenham Hotspur. However, he has now transformed into United's most complete and vital midfielder.

The 29-year-old has done everything from defending to attacking in the center of the park and he has done that job well. He has scored 3 goals coupled with 3 assists in the Premier League so far. His has also impressed with his defensive roles to round his all-around contribution.

Unfortunately, he is yet to receive a new contract while his current one is set to expire. He has attracted interests from superpowers such as PSG and even Barcelona. Now either United do everything necessary to keep the Spaniard or they would suffer heavy losses if the midfielder departs.