United's shock 2-1 opening day defeat appears to have sprung the club into life in the transfer market, with Sporting Lisbon defender Marcos Rojo joining the club in a £16m deal, following Southampton left back Luke Shaw and Athletic Bilbao midfielder Ander Herrera to Old Trafford as the Red Devils' spending moves past £75m.
New manager Louis van Gaal is now on the lookout for more new signings with just 11 days until the transfer deadline, and whilst deals for Roma's Mehdi Benatia, Fiorentina's Juan Cuadrado and Real Madrid's Angel di Maria continue to be speculated over, it appears that the club have had a bid rejected for another defender today.
Despite the signing of Shaw, United still need to bring in another left wing back after the departures of Patrice Evra and Alexander Buttner. Ajax's Daley Blind has been strongly linked and whilst Rojo can fill in there if needed, it seems that van Gaal is still looking to add one more natural wing back.
Marseille's Benjamin Mendy had been linked with the club during David Moyes' stint in charge of the Red Devils, but now it seems that van Gaal is also interested in signing the 20-year-old Frenchman.
A youth international for France, Mendy has been highly rated for many years now, and despite reported interest from Arsenal, he joined Marseille from Le Havre last summer. After an impressive season for Marseille, he's now attracting even more interest - including from United.
According L'Equipe, United had made a bid to sign Mendy - only for Marseille to reject the offer, with new manager Marcelo Bielsa suggesting that the left back is "untransferable".
That leaves United to adjust their transfer plans once again, with Marseille clearly telling van Gaal's men that Mendy is not for sale. The aforementioned Blind could come back on the radar given his versatility in midfield too, as United look to land a backup left wing back for the currently injured Shaw.