U.S. Women's National Team legend Mia Hamm spoke to Yahoo Sports about the Americans' outlook for this month's tournament in Qatar - including why Christian Pulisic, Matt Turner and Tyler Adams will play a big role in the squad's success. Mia joined Yahoo Sports on behalf of TIAA to promote the importance of gender equality in retirement. Learn more about how TIAA is working to encourage pay equality in sport by visiting www.retireinequality.com.