Peeved Gio van Bronckhorst admitted Rangers made “unthinkable” errors as Celtic delivered a brutal reality check by taking a huge step towards the title.
The champions’ 12-month reign is all but over after they failed to get a result that would have kept them in the Premiership flag race.
Aaron Ramsey looked to have finally delivered on his biggest outing in a blue jersey yet as he fired Gers ahead.
