Manchester United were dearly a massive injury blow as key midfielder Ander Herrera suffered a hamstring injury early on in their UEFA Champions League round-of-16 clash with Sevilla on Wednesday night and had to be subbed off.

Herrera raced into Antonio Valencia’s through-ball inside the Sevilla box and as he attempted a back-heel, the Spaniard pulled up. He immediately signalled to the bench that he couldn’t carry on.

Don’t miss: Team news, lineups for Sevilla vs Manchester United

French midfielder Paul Pogba, dropped to the bench for the clash in Spain, replaced the Spaniard in the 17th minute.

The 28-year-old Herrera is seen as a vital part of Jose Mourinho’s squad, even if he isn’t a guaranteed starter and he is almost certain to miss their Premier League clash with rivals Chelsea on Sunday.

Also read: Eden Hazard reacts to Chelsea’s draw with Barcelona

Usually, a hamstring injury takes a couple of weeks to heal, which would mean United’s No.21 could be touch-and-go for the return leg of their European fixture, which takes place at Old Trafford on March 13.