Good news for all SPL teams is that Willie Collum remains out in Columbia at the World u-20 World Cup hopefully improving his positional sense.
During the summer Thomson became full-time referee recruitment manager for the SFA after a typically chequered season that saw him order Neil Lennon to the stand during a Hearts v Celtic match and overturn a Rangers penalty against Celtic when Nikica Jelavic dived following a Thomas Rogne challenge.
James Bee and Gary Cheyne will assist Thomson on Saturday with Barry Cook as fourth official.
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