Reynolds, who is second in the championship behind van Gisbergen, is set to start sixth.
The practice near-miss is the latest chapter in a rivalry between the pair which stretches back to an incident at Phillip Island in 2015 that took Reynolds out of title contention.
Van Gisbergen is renowned as being one of the most aggressive drivers in the field and, according to commentator Russell Ingall, Reynolds must stand up to his rival.
“I would have fired him [van Gisbergen] straight off and copped the fine,” said the outspoken 2005 Supercars champion.
“Seriously, he’s got to get tougher, Davey, with this sort of thing. Don’t just give a little hand wave, waste the guy.”
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