David Luiz (left) is being assisted by Arsenal’s senior physio, Jordan Reece, after suffering a head to head collision.
David Luiz being assisted by Arsenal’s senior physio, Jordan Reece. Photo by Catherine Ivill/Getty Images.

Concussions in football are something common. They tend to come from collisions, typical in a contact sport. And the resolution in most of the cases is the same: a rudimentary check-up by the medical staff -in the cases of pro football- and a ‘thumb up’ signal to the manager. “Show must go on”, as Brian May once wrote.

But what happened this Sunday between Arsenal and Wolverhampton has gone much further. Not only because it…