Shake, rattle and roll
Junior skating teams came together in Los Angeles in June to take part in the National Championship for Banked Track Roller Derby: a competition not for the faint hearted.
The roller derby is a fast-paced contact sport, which sees teams of competitors whiz around a track as they try to score points. Junior players can be as young as seven, but what they lack in years, they make up for in feistiness, with skater names like 'Lil Bruiser' and 'Ripper N Half'.
A member of the Penn Jersey roller derby team from Philadelphia stands outside the National Championship for Banked Track Roller Derby in Los Angeles.
Junior teams compete in the roller derby, which involves zooming around the track while certain players try to pass skaters on the opposing team in order to score points.
Twelve-year-old Sierra Olea, who plays for the Sugartown Sugarbabies, warms up at the competition.
Young skaters wait to compete.
A girl has her helmet adjusted before taking part.
A young player puts in her gum shield before going out on the track.
Skaters wait for their turn to compete.
Junior skaters push past one another on the track.
Twelve-year-old Sierra Olea (right) and 8-year-old Norelyn Herrera warm up.
Skaters bunch up together as they compete.
Girls reach out to congratulate a winning team at the championships.
Young players fall down on the track.
Seventeen-year-old Zoa Benton gets a hug from her mother, Shawn Ziegler, after taking part.
