O`Brien on a Knife Edge Knife Edge will have one more run before taking on Britain`s best two-mile chasers at the Cheltenham Festival in March.The seven-year-old`s trainer, Michael O`Brien, confirmed today that his charge will head to Naas for the Newlands Chase on February 24th before going on to the Queen Mother Champion Chase.Knife Edge, a 10-1 chance for the two-mile championship with William Hill, has won his last three races over fences, most recently beating Alcapone by three lengths in a Grade Three contest at Leopardstown over Christmas.Originally trained in Newmarket by Sir Michael Stoute for his brief career on the Flat, the son of Kris S was a high-class hurdler who was beaten less than nine lengths when third to Istabraq in the AIG Europe Champion Hurdle at Leopardstown two years ago.'He`s going for the Champion Chase after Naas,' O`Brien said today. 'I am expecting heavy ground at Naas at that time of the year but I`d hope he will be fine on anything at Cheltenham.'The thingis we`ve never run him on fast ground when he`s been right so we couldn`t be sure about whether he would go on it but he is a Flat-bred horse with a beautiful action so you`d have to be hopeful.'The trainer is hopeful that his relative lack of experience over fences compared to seasoned chasers like Edredon Bleu and Flagship Uberalles would not be too great a disadvantage on the big day.'He`s doing everything we`ve asked him to over fences and I want to just get one more race into him which is why he`s going to Naas,' O`Brien explained.'He has got plenty of pace and I can see him having no problems lying up with them at Cheltenham, he`s certainly got a turn of foot for the finish too.'But as to whether he is going to be good enough to beat the very best, we`ll just have to wait and see.'