An experienced midfielder to play alongside Jack Colback would be ideal for McClaren's men, but they have now reportedly failed in a move to sign Carrick.
The Mirror believe that McClaren lodged an enquiry in a bid to prise Carrick away from Old Trafford - yet even after the signings of Bastian Schweinsteiger and Morgan Schneiderlin, Louis van Gaal has blocked Carrick's potential departure from United.
The Newcastle-born midfielder could have been in line for a return to his hometown club, but Van Gaal wants to keep the 33-year-old at Old Trafford, viewing the former Tottenham star as a valuable experienced head in the United squad.
McClaren may now seek another more experienced midfielder to help bring Colback along, but it seemingly won't be Carrick after Van Gaal's rejection of Newcastle's enquiry.
Carrick's role at United may be somewhat diminished by the arrival of Schweinsteiger and Schneiderlin, and whilst his age means that his role could be reduced, it's clear that Van Gaal still sees him as a vital cog in United's operation ahead of the new season.