But Robertson reduced the lead when he appeared at the far post to despatch Paul Dixon's deep cross past Boruc, leaving Celtic to hang on for a vital victory.
Not least because in the dead man's pudgy hands he finds a gold cross, ornately worked and made to hang upside down in the way St Peter was said to have been crucified.
Bruno Cheyrou then had Hislop backpedalling to desperately claw away a cross from under his bar and then Hislop showed clean hands to hang on to Gerrard's free-kick.