THESE young women need to get their skates on if they want to block, hit and jam against the best in Adelaide in June.
St Marys-Mount Druitt is well represented in the Western Sydney Rollers Boutlaws roller derby team which will compete there.
Roller derby is one of the fastest-growing sport in the world, played by two teams of five skating in the same direction around a track.
Play consists of a series of short matchups in which both teams designate a player who scores points by lapping members of the opposing team.
The teams assist their own jammer while hindering the opposing jammer.
In 2008, 15 women, including some who couldn't skate, teamed up to form the Western Sydney Rollers league.
It's now one of the largest leagues in NSW, with almost 100 members, three home teams and a championship-winning representative team.
The Boutlaws were champions at last year's Eastern Region Roller Derby tournament.
They'll compete against the best leagues across Australia and New Zealand in the Great Southern Slam.
Penny Dobie (aka Dobie Wan Kenobi) is a Colyton High School teacher while Debra Ellicott (aka D-Star Uction) 41, is a Mount Druitt grandmother.
"I was voted by my team last year as the hardest hitter," Ellicott said.
"It's a game anyone can play and is for all shapes and sizes. I would encourage all ages to take it up, including older women."
Tenille Paine (aka Charlotta Paine) played basketball in her former life.
"I was at a rock'n'roll expo at Tempe of all places and found out there was a league starting up 10 minutes from home," she said.
Ellicott hopes to be a force to be reckoned with in Adelaide.
"We look forward to showing what western Sydney girls can do," Ellicott said.