Man United have been in link with Barcelona attacker Pedro but the recent reports claim that Chelsea are set to seal his deal in the next few days. La Liga side Barca have reportedly agreed £21.1 million bid for the Spanish midfielder.
While, Mane who could become a Man United player this month has already enjoyed his success in the Premier League.
The Senegal international who netted 10 goals last season was signed for £11.8 million last summer from Red Bull Salzburg.
The Red Devils have only signed one attacker Memphis Depay and now they are set to add another with the signature of Sadio Mané.
The Dutch manager Louis Van Gaal claimed that they were in the race of Pedro and they could have signed him in the start of the window but in the recent weeks they were not interested.