Kilmarnock manager Kenny Shiels is an admirer of the retiring Sir Alex Ferguson and said the Manchester United manager's legacy will continue to act as an inspiration to a generation of managers - including himself. Shiels expects football manager to continue to look up to a manager whose achievements are unlikely to be matched. He said: "Everybody takes inspiration from someone - that's what keeps us living. He is one of the people you look up to, especially with what he has achieved and what he has done for such a fantastic club. He's a unique person. There's no such thing as being irreplaceable - but he probably is. No-one will manage a club of that magnitude for 26 years. No-one will do that again because of the way football has gone."The Rugby Park side have had a difficult week to deal with after the death of one of their season ticket holders, who collapsed during their game against Hibs. The game was abandoned after James Haswell fell ill with a suspected heart attack while watching his team's game at Rugby Park on Sunday. Shiels said: "It's hard. Our thoughts are with the family and that's really about all we can say on it. You can only offer your heart-felt sympathy. There is nothing you can do that can change anything and that's when you feel so helpless. I didn't know him that well but I remember meeting him in the bowling club. I was round there one night after a game, just to take the trophy round. I met him and had a good bit of banter with him. He was a real supporter."Relegated Dundee are the visitors on Saturday and Shiels says his players will be in the right frame of mind for the game, adding: "They will be ready to go for it on Saturday. You can create any permutation. You can ask what Hibs' frame of mind will be approaching a cup final in a couple of weeks. Or what will Dundee's frame of mind be, having just been relegated? Next week, it will be St Mirren and what will their frame of mind be now that they're safe? You can create analogies on teams' mental states and where they are psychologically. But it's a game of football. It's coming to the end of the season and Dundee have proved beyond doubt that they deserved a place in the SPL through their play. They've been brilliant and deserve credit."