O'Neill said, "I have got total confidence in Roy.
"Roy Keane wants the best for the Republic of Ireland, as I do. We managed to get to the Euros and the World Cup play-offs and Roy has been a great part of that.
"I wasn't there during the discussion (row), but I've heard the sides of the story. Jon Walters is coming in. I think you have to consider that.
"I took Roy on because I wanted him to display the things that he has shown over the five years. I am not an apologist for him - he can speak for himself."