“Huge congratulations to @SaraCoxRef,” Premiership Rugby tweeted on Monday.
“She’ll become the first woman to referee a #GallagherPrem league game on Saturday. Continually making history.”
Cox became the world’s first professional female rugby referee in 2016 after receiving a central contract from England’s Rugby Football Union (RFU).
She became the first female assistant referee in Premiership history in August 2020 when she officiated a fixture between Bath and Wasps.