Defenders Jessica Ballweg and Leslie Osborne, members of 2001 NCAA Division I champion Santa Clara University, head the 20-player roster for the U.S. under-19 women’s national team’s final tests before the Under-19 Women’s World Championship qualifying tournament next month on the islands of Trinidad & Tobago. Tracy Leone’s Americans face the Jamaican and Canadian U-19 squads on April 12 and 14 in a round-robin tournament at the Sunrise Hilton Hotel in Ft. Lauderdale, Fla. Jamaica and Canada will square off on April 13. The roster features six college freshman, 10 high school seniors, two juniors and two sophomores. Defender Amy Steadman, midfielder Lori Chalupny and forwards Heather O’Reilly and Kelly Wilson have earned caps for the senior U.S. team.