Martin O'Neill was sparing in any praise of Duffy against Costa Rica. I think he said he needs to improve his footwork. I don't see why it's a crime for Keogh not to single out Duffy for praise if the boss doesn't either.
I'll concede that he does appear very happy to talk about himself though. Not a big deal for me really.
My view on Keogh is that in the Championship he's great at winning high balls in blood and thunder games. Unfortunately those games don't happen in international football and the modern CB needs good feet too. I don't think Keogh is a good enough athlete, reader of the game or all round footballer to face fast technical players who can pull defences all over the place. The Championship is fast but quite one dimensional and he's very at home at that level.