Kemar Roofe and Alfredo Morelos were shown yellow cards while St Johnstone’s Shaun Rooney and Liam Craig were also booked after a coming together.
The incident happened after Roofe had equalised from the penalty spot, with the Jamaican international and Craig coming together.
Morelos then ran in to help his team-mate while Rooney got involved for St Johnstone and Collum made the decision to book all four.
And Hackett reckons that was probably the right call as he admitted the players would have been lucky to avoid a booking.Get all the latest Rangers news sent straight to your Inbox every day by signing up to our newsletter.We cover every morsel of information regarding your favourite club in the form of articles, videos and podcasts.The.
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