Canada front rower Maya Montiel joined Saracens last week and went straight into the lineup against Wasps on Saturday.
Prop Montiel arrives in north London having previously played for University of Ottawa and made her debut for Canada in June against USA.
“It is an honour to join Saracens,” she said. “I've followed the Premier 15s for a few years and feel privileged to take on this opportunity. It is evident that the team continuously sets higher standards in the sport.
“I look forward to further expanding my development and exposure as a person, student, and athlete under the coaching team, as well as the world-class players in the squad.”
Elsewhere in the Premier 15s, Worcester Warriors captain and Scotland second row Lyndsay O'Donnell has joined Bristol Bears on loan for the remainder of this season.
O'Donnell, 28, has struggled with injuries this year and will use the move to get some game time ahead of the Six Nations which kicks off on March 25.
