Arsenal confirmed the arrivals of Lucas Perez and Shkodran Mustafi on Tuesday evening but fans were made until Thursday to buy replica shirts with their names on the back.
That is because the Gunners decided against revealing their shirt numbers along with their first interviews and there was some speculation as to why mainly to do with Jack Wilshere.
The England midfielder was busy trying to secure a loan move away at the time of Perez's arrival and, considering the striker's Twitter handle is @LP10oficial, it was reasonable to believe that the Spaniard was waiting for the No.10 shirt to become vacant.
But it appears Arsenal are not willing to give Wilshere's shirt away, allowing it to stay vacant despite seeing him leave for Bournemouth on a season-long loan.
So Perez will have to change his Twitter handle while Mustafi will wear a new shirt number as well. He was the proud owner of the No.5 shirt at Valencia, which is currently occupied by Gabriel Paulista at the Emirates. Few would be brave enough to try and take it from the Brazilian. Mustafi is not one of those few and he opted for something else.
Here is Perez's new number:
Choosing the No.9 shirt, Perez joins the likes of Davor Suker, Francis Jeffers, Jose Reyes, Julio Baptista, Eduardo, Park Chu-Young and Lukas Podolski. We're starting to realise why Olivier Giroud turned it down.
As for Mustafi:
Previous owners of the No.20 include Mathieu Flamini and, erm, Philippe Senderos.
The new players will have to wait until September 10 to make their debuts for the Gunners, but they will do so in front of a sold-out Emirates Stadium. Arsenal take on Southampton in what should represent an easy game. Having said that, they lost 4-0 to the Saints in January.