"I think he will get a good reception from the fans - but not from us for the 90 minutes," said Liverpool's stand-in skipper.
"He is the enemy during that time and we will be trying to win the game. After the game everything is fine again.
"I was a bit surprised that he left but this is football and anything can happen. You just have to be prepared for anything and Danny decided to go to Charlton where he can play every week.
"I respect his decision and I can see him doing alright at Charlton."