Antonio Valencia's decision to give up the No.7 led to suggestions the shirt is being made available for Cristiano Ronaldo to return to the club.
The Real Madrid superstar is arguably the most successful No.7 Manchester United had, and wore the prestigious jersey during his Ballon d'Or winning season at Old Trafford.
How Manchester United fans would love to see Ronaldo return before the transfer deadline, and the number is there for the Portugal captain should he want it.
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