@ayoluyizeus@ChelseaFC It's called concussion( head injury) substitution. It is allowed by the Laws of the Game for a team to make extra sub if players go off due to head injury. The referee is the one to judge if it is concussion or not.
@442_Malawi Fairs. The owners havr invested a LOT of money. You can't tell them to be patient. Leave the patience for clubs that haven't invested money that much. They want results NOW and it's justifiable.