Kelechi Iheanacho netted a last-gasp penalty for Celtic as they beat Motherwell on Wednesday night.
The Scottish Premier League clash was heading to a 2-2 draw, before the visitors were awarded a spot-kick for a handball in the area.
Elliot Watt fired Motherwell in front against the defending champions, but Daizen Maeda brought them level just before half-time.
The visitors then got their noses in front early in the second half through Benjamin Nygren’s thunderous effort.
But they were then pegged back once again by Liam Gordon as the title swung back firmly into Hearts’ hands.
With one round of matches left to play, Hearts remain top with 70 points, while Rangers are a point behind in second place.
Celtic have 67 points.