The Blues skipper threw the captains armband and then his shirt to the ground after being substituted towards the end of the 2-1 win at St Andrew's on Saturday. "I took that to mean the fans were glad I was being taken off and, after more than four years of service, that hurt. "I have been told I misread the reaction of the crowd and, if that is the case, I am sorry and I hope the supporters can appreciate that. "I give Birmingham City my complete dedication and will continue to do so and I hope that my passion on the field can show everybody that I totally mean what I am saying. "Once again I wholeheartedly apologise."
"When the subs were read out, there was a huge cheer," the Northern Ireland international midfielder said.