He makes those around him better

Danny Welbeck is case in point.

A good, but not a great player and certainly not a player who would lead you to a title or even the FA Cup but one who Sanchez has actually made look like quite a decent buy.

The likes of Jack Wilshire and Olivier Giroud fall into the same category – and had Sanchez not been in an Arsenal shirt this season, the Gunners would be in an even worse situation and their other players would not be looking so sharp. Well sharp. At times.