Rangers midfielder Ryan Jack has questioned why match referee Willie Collum let Hearts' Beni Baningime foul him without any punishment during Sunday's 5-0 victory at Ibrox.
Baningime lunged in from behind on Jack as he drove forward into a dangerous area on the edge of the box but Collum let play go on, despite being in a close position to the incident.
Thankfully for Giovanni van Bronckhorst, the Scotland star was able to shake the tackle off and play on.
And it made no bearing on the results with Alfredo Morelos on target twice before Glen Kamara, Scott Arfield and Fashion Sakala turned it into a hammering.
Jack took to Instagram on Monday to express his frustration at the lack of punishment for the Hearts midfielder.
He wrote: 'Nah never been a foul! I slipped' with an eyes emoji and a thinking face.
Jack has been out injured for large spells during 2021 but produced an impressive display in what was his first start of the season against Hearts, after coming on as a half-time substitute in Rangers defeat to Celtic midweek.
He was one of the few Rangers players who got pass marks on his second half showing against Celtic last week.
And on Sunday in a revamped midfield alongside John Lundstram, Gio van Bronckhorst seemed to get the best out of both players with Hearts pair Baningime and Cammy Devlin unable to deal with them.
Rangers next face the other half of Edinburgh in midweek as Hibs visit Ibrox on Wednesday.