The midfielder’s contract at Old Trafford runs out in June and while negotiations have been ongoing for 18 months, they have reached a deadlock. He is, therefore, able to leave on a free at the end of the season.
While Herrera is thought to prefer to stay at United, it is looking increasingly unlikely that will happen.
It was previously reported that he wants his current £80,000-a-week wages upped to around £150,000 a week.
PSG would be interested in signing him on a free and would be able to boost his wages because of the nature of the transfer.
And speaking ahead of United’s Champions League clash with Barcelona, the 29-year-old suggested he had a different view on his deal to the club.
Speaking to Spanish outlet ABC: ‘I want to beat Barcelona and think about football.
‘It is true that I have only two months of contract and today Manchester United and I do not think the same and there is no renewal agreement, but my duty is to continue listening to United.
‘What I have clear is that I’m going to continue playing in a big team.
I will listen to United, of course, but also to other clubs. I do not close doors.’