The Under-20 Women's World Cup begins Wednesday in Chile. Many of college soccer's top young players are skipping this fall's NCAA Division I Women's Tournament to represent their countries.

Top 25 teams Penn State and Colorado, both upset in the first round of the NCAA Tournament, were playing without their stars, All-American goalie Alyssa Naeher and Nikki Marshall, respectively. Naeher and Marshall were with the U.S. team preparing for its opener against France in Chillian.

But eight other teams won without stars who left to represent the USA or Canada in Chile. Portland was impacted the most, losing three players, but the Pilots opened with a 6-1 win over Northern Arizona and 2-0 win over Texas.

(In addition, Sweet 16 teams Minnesota (U.S. keeper Cat Parkhill), Florida State (Canada keeper Erin McNulty), Rutgers (Canadians Shannon Woeller and Jonelle Filigno) and Illinois (Stephanie Panozzo) all have Canadians who red-shirted this fall.)

SWEET 16 LOSSES:
PORTLAND (3)
Elli Reed (USA)
Keelin Winters (USA)
Michelle Enyeart (USA)

NORTH CAROLINA (2)
Meghan Klingenberg (USA)
Nikki Washington (USA)

BOSTON COLLEGE (1)
Gina DiMartino (USA)

FLORIDA STATE (1)
Becky Edwards (USA)

NOTRE DAME (1)
Lauren Fowlkes (USA)

RUTGERS (1)
Karla Schacher (Canada)

TEXAS A&M (1)
Alyssa Mautz (USA)

UCLA (1)
Sydney Leroux (USA)