HOW ACQUIRED: Transferred from Tijuana and signed on August 10, 2017.
Arriola is a two-way winger who showcased his versatility in his first full season with D.C. United. He had six goals and two assists in his primary attacking role, but also filled in well at right back and the No. 10 when needed. Suffered a torn ACL in the preseason and will be sidelined for several months.
INTERNATIONAL: Arriola has represented the United States at every level, culminating in his senior team debut on May 22, 2016, against Puerto Rico, where he scored and had an assist. Arriola became only the ninth player in U.S. history to score a goal in his first two international matches when he scored the final goal in a 4-0 victory over Trinidad and Tobago in a World Cup Qualifier (which also happened to be his WCQ debut).
OUTSIDE MLS: Arriola joined Major League Soccer after spending the last four years in Liga MX with Club Tijuana. The Chula Vista, CA, native made over 100 appearances in all competitions for Xolos, and made his Liga MX debut on July 19, 2013 as an 18-year-old.