Christian Pulisic has signed a contract extension with Germany's Borussia Dortmund through June 2020. The 18-year-old midfielder from Hershey, Pennsylvania, signed with Dortmund in February 2015 and made his Bundesliga debut in January 2016. Pulisic also made his U.S. national team debut last year and scored against Bolivia and St. Vincent and the Grenadines. More...