This will be the first time he has refereed Blues or Fulham.BCFC
So far this season the Australian-born official has refereed 10 games, where he has produced a total of 32 yellow cards but no reds.
This is his second season refereeing in England and Saturday's match will be the first time he has refereed either Blues or Fulham.
Prior to arriving in the UK to study at Liverpool's John Moore’s University, he was one of Australia’s most experienced match officials, where he was named the A-League Referee of the Year five times.
On the international stage, he has been a FIFA International Referee since 2013.
Mr Gillett will be assisted at St. Andrew's by Mark Dwyer and Geoffrey Russell, with Lewis Smith acting as the fourth official.