The lawsuits argue that the 14th Amendment to the U.S. Constitution guarantees citizenship for people born and naturalized in the U.S.
PowerSchool, a widely used platform among districts in western Washington, including Seattle and Everett, confirmed the breach.
Alonso played with the Sounders for 10 seasons, tallying four MLS All-Star appearances and helping lead the Sounders to their first MLS Cup in 2016.