By Toby Cudworth Atletico Madrid centre-back Robin Le Normand suffered a ‘traumatic brain injury’ in the closing stages of the 1-1 draw with rivals Real Madrid on Sunday. The 27-year-old, who joined Atleti from Real Sociedad in the summer, clashed heads with Aurelien Tchouameni and immediately received treatment on the field. There was real concern at the time for Le Normand, who was attended to by teammates and the club doctor, before he left the field looking groggy and a bit dazed. He has been under observation ever since, undergoing a number of tests and examinations, and Atleti have confi…