Gabriel Jesus won the penalty for Arsenal's winner against Liverpool but should he have been on the pitch?
If football's concussion protocols were followed - 'if in doubt, sit them out' is the motto, remember - then you'd have to say no.
After being elbowed by Liverpool's Konstantinos Tsimikas, Jesus looked out cold. He dropped to his knees and fell on his face.
Arsenal's Gabriel Jesus fell to the turf under a challenge from Konstantinos Tsimikas on Sunday
He lay face-down in the dirt with no movement.