Charlie Nicholas believes it is Hearts who present more of a roadblock to Celtic in their chase for a Treble than Rangers.
That is the view of the former Parkhead icon who insists Robbie Neilson's men can put a sting in the tail when Ange Postecoglou and Co come to the capital in the Scottish Cup this weekend. Celtic have already secured the Viaplay Cup after beating Michael Beale's side in a tussle at Hampden last month and still retain a healthy nine-point advantage over their big rivals.
Postecoglou already has a trio of trophies in his locker and Nicholas insists he will be 'desperate' to join the list of former Parkhead managers who boast the accolade of securing a treble.
