Manchester United legend Roy Keane is being told to step down as Republic of Ireland assistant coach after claims emerged of him allegedly slating Harry Arter.Irish legends Liam Brady and John Giles are demanding Keane be axed by the FAI.The Sun reports Keane was involved in a row with the Cardiff City midfielder which Martin O’Neill confirmed was a factor in his decision to make himself unavailable for Ireland.Reports emerged in yesterday’s Sunday World alleging that Keane labelled Arter a ‘p***’* and a ‘w*****’ for sitting out a training session on the advice of FAI medical staff.Irish football heroes Brady and Giles – speaking on Eamon Dunphy’s ‘The Stand’ podcast – insist Keane is not fit for the role of assistant manager.Arsenal icon Brady blasted: “The thing that strikes me about Roy Keane and it has for many years now, is that I don’t think he likes football and I don’t think he likes players.”When you hear him speak about football in his punditry role, it comes across that he doesn’t like modern-day footballers. I think this thing is boiling inside of him.”He’s damaging a squad that’s weak in many ways anyway and we can’t afford to lose any players.”Every time there is an Irish game there was a story about Roy Keane, whether he was having a go at somebody or whether he was launching another book of his.”I can’t even understand how Martin O’Neill could put up with that. He’s got an international match and Roy Keane decides to launch his book the week of an international game.”It’s crazy, it’s mind-boggling and it’s really taking the p***, isn’t it? It really is taking the p*** out of the Irish soccer team.”Martin O’Neill, or the powers that be, John Delaney, has to say enough of this. This has got to stop.”Leeds United legend Giles also said: “I knew there was a row. I didn’t know what the details were.”It shouldn’t happen. Roy Keane is assistant manager of the Irish team and he is there to assist the manager.”As assistant manager he should be helping Martin and in the Arter case he hasn’t helped him at all. In fact, Arter has said he doesn’t want to play, That’s being destructive.”If you talk about being equipped to be an assistant manager? Definitely not.”