Mikel Arteta is closer than ever to assembling his ideal Arsenal first-team squad size after overseeing as many as four deals in the summer transfer window so far.
With Marquinhos - the first new addition in a £3m move from Brazilian outfit Sao Paulo - being handed the no.27 shirt in training, it may indicate that he will be part of the senior squad next season alongside fellow recruits Fabio Vieira, Matt Turner and compatriot Gabriel Jesus.
Not that this decision rules out the prospect of Arsenal signing another wide player before transfer deadline day as Arteta could still be looking to bolster the department and also provide extra competition for the likes of Bukayo Saka, Emile Smith Rowe and Gabriel Martinelli.