Huge Offer of €57m From Man United might be Accepted

Manchester United seem very serious about reinforcing their squad by signing an attacker in the winter window and a certain Senegalese star is in the limelight.
The Red Devils are once again linked with a move to sign Southampton playmaker Sadio Mane. However, reports in the media suggest that they may have to splash a huge sum to secure his signature.
According to Daily Mail, manager Louis van Gaal is keen on signing the African star but will have to offer way more than the €28m he was willing to spend in the summer window.

As per the provided Daily Mail link, an offer close to €57 million might be accepted by the Saints but it is highly unlikely that the Old Trafford club will spend that sum on Mane.
Sadio is one of the most in form attackers in England. He has scored 6 goals and provided 6 assists in all competitions this season. In your opinion, is Mane worth €57m?