He said: “I felt aggrieved that I left West Ham too early. I feel that there was no situation where they would get relegated and I still don’t.
“Moving to a club across the water would have been a problem in any other scenario.
“But Charlton are my old club and it seemed perfect for me because I have great respect for them.
“My focus here is not to catch West Ham but it is to stay in the Premiership.
“My motivation is to stay in the Premier League and I also think West Ham will do that when Dean Ashton returns.
“I feel that, in the time we have left, we will have to win almost half the games to survive.
“That is a tough call and the odds are stacked against us. But if I didn’t think we could make it, I wouldn’t be sitting here.”