A host of defenders have worn 20 during their Arsenal careers, but not all with a great deal of success.

Shkodran Mustafi vacated the shirt in January, with the likes of Johan Djourou, Philippe Senderos and Matthew Upson having worn it before him.

White may want to pick a number which has a better history, shall we say.

What’s remaining?

There are thin pickings for White other than the numbers mentioned above.

The 23 and 26 shirts are available before it gets above 30, but more may become free once Arteta sells some players this summer.

It appears the No 5 would be the best bet if Arsenal can get a deal over the line for White this summer.