Chelsea could be set for busy climax to the transfer window with the Blues linked to numerous players ahead of Thursday evening's deadline.
The likes of Leicester City defender Wesley Fofana, Barcelona striker Pierre-Emerick Aubameyang and Everton winger Anthony Gordon are all players that could make the move to west London by the start of September.
But should any new players come through the door at Stamford Bridge, what squad numbers could be made available to them?
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Unfilled Chelsea squad numbers:
Aubameyang will be glad to know that the No.9 shirt is still vacant and would surely be assigned to the Gabonese striker should he return to London just seven months after leaving Arsenal.
The other single digits available are 2 and 4, with the 4 more likely to be taken by Fofana. However, the Frenchman could be assigned the No.3, which he wears at Leicester, if a move away for left-back Marcos Alonso is secured. The Spaniard appears to have no future at Stamford Bridge with the Blues signing Marc Cucurella from Brighton whilst Ben Chilwell is also ahead of the 31-year-old in the pecking order.
Chelsea have also been linked with a shock move for Manchester United defender Harry Maguire, who wears the No.5 shirt at Old Trafford, occupied currently by Jorginho.
No.15, No.25, No.27 and numbers from 34 onwards are also free, which would see Gordon and any other arrivals have a mixture of options to choose from, although the Everton man did swap his No.24 at Goodison Park to the iconic No.10 over the summer.
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