Stephen Robinson insists it is not an 'impossible task' for his St Mirren side to beat Celtic - because they've already done it this season.
The Buddies remain the only side to dethrone Ange Postecoglou's men in league action this campaign as the Hoops were one day away from a full year without defeat when St Mirren secured a huge 2-0 victory in Paisley back in September. Since then Robinson's men have had the template to be victorious again but saw the last visit to Parkhead last month end in a 4-0 defeat.
In quick succession the Scottish Cup has come round with the Paisley side being drawn against Postecoglou and co with a late Saturday kick-off. St Mirren have managed just two wins in their last five but Robinson insists his men must take confidence from the previous upset.
