Sheffield United have been criticised for delaying the substitution of defender George Baldock at Leeds after he appeared to be left groggy following a hefty challenge on Leeds United's Tyler Roberts.
Alan Shearer, who made highly acclaimed television documentary Dementia, Football and Me, was appalled Baldock was allowed to return to the action at Elland Road following concussion checks – only to then be replaced five minutes later shortly before half-time.
'I look at it and I think, when is football going to learn,' stormed Shearer, who was analysing the Yorkshire derby for Amazon Prime.