The big Swede was back at United’s Aon Training Complex last week following his operation in America in an attempt to save his career after suffering knee ligament damage during the Europa League quarter-finals.
Speaking about his impact, Herrera claims Zlatan still has a part to play.
“I always say this is a team sport, we are a team,” he said. “The reason we have won two titles (Community Shield and EFL Cup) this season is because everyone has been there, working, helping. This final is for everyone.
“Of course 11 players will be on the pitch but everyone is ready to help and push for their team-mates. So, if we win it, it will be for everyone. Everyone has been part of this.
“Zlatan and Ash (Young) have very good experience. We need everyone.
“When you want to win a European trophy and you want to make a good season, it is not only on the pitch, you need help from the outside. Zlatan is here to help, Ash is also here to help. We are a team who is together. Everyone is important.
“He is with us, he is supporting us. I think he is very good. He is optimistic. He is 100 per cent sure he will be back because he cannot stop winning. He cannot stop scoring. For sure, he will be back at the best.”
There are concerns over if he could even play again due to the severity of the injury at his age, but it seems like he’s fighting hard to get back to his best strength.
Zlatan is yet to sign a new deal at United and there’s even a chance we may not see him in a United shirt again but the main thing is that he’s getting better.