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Coverage and commentary from KC vs. Houston, RSL vs. Chivas USA

MLSsoccer.com's preseason coverage from Arizona continues today as our experts provide updates and commentary from two scrimmages: Sporting Kansas City vs. the Houston Dynamo at 11:45 a.m. ET and Real Salt Lake vs. Chivas USA at 1:45 p.m. ET.

ExtraTime Radio's Jason Saghini leads the chat for the the early game [FOLLOW THE CHAT HERE], while managing editor Jonah Freedman takes over for the afternoon tilt. Plus, look out for other MLSsoccer.com editors and contributors chiming in throughout the day as they take your questions about the games and the season ahead.

We'll also be getting updates from each club's official Twitter feeds to help keep you up to speed on roster changes and substitutions and your favorite players' action from Arizona.

Thousands of fans have already joined MLSsoccer.com during our series of preseason chats, so don't miss out when your team hits the field!