Brendan Rodgers has backed the introduction of concussion substitutes in the Premier League following the injuries to Raul Jimenez and David Luiz in the latest round of matches.
Jimenez suffered a fractured skull which required surgery and he is under observation in a London hospital, while Luiz was taken off at half-time during Wolves' 2-1 win at Emirates Stadium.
Leicester boss Rodgers said: 'Looking at the incident at Arsenal and some previous ones, it's a valid point. The collision was awful and I hope Raul Jimenez recovers well from the operation.