In a relatively controversy-free SPL weekend, there were still a couple of big calls for the officials to make.
At Tannadice, the match between Dundee United and Hearts was poised at 0-0 when Willo Flood hit the turf inside the box after colliding with Ryan Stevenson.
Referee Alan Muir was unmoved by the claim and Hearts went on to dominate the match, posting a 3-0 victory on the road.
Motherwell took a 3-1 lead at Pittodrie in the 82nd minute when Nicky Law touched the ball over the line.
Replays showed that Aberdeen goalkeeper Jamie Langfield had advanced beyond the last defender, making him the marker for the offside call.
While Law was clearly offside when the initial header went towards goal, a touch from Jamie Murphy once Law had moved in line with Langfield could mean the call from the linesman was the correct one.
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