Roller derby team leader Krista Sandney, front left, picks up speed as she manouevres around the pack of skaters trying to prevent her, during a practice for the Strait Jackettes team recently at Tom Zandee Sports Arena. The other skaters with her are, from left, Pam Scott, Jasmine Kravanya, Kara Somerville and Carrie Hembroff-Murphy. Some of the members of the Jackettes will be taking part in a roller derby competition on Saturday, Apr. 21 in Estevan, put on by their league, the SE Sask. Roller Derby Association.