Neil Lennon's side remain on course for a domestic Treble after thrashing Dundee United 4-0 at Tannadice to set up a semi-final clash with St Mirren or Hearts on April 14 or 15.
And the Parkhead club have a chance to win the first piece of silverware on offer when they take on Kilmarnock at Hampden. But Ledley is refusing to take anything for granted.
The Welshman said: "We know we
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