A member of the Los Matadores tag team, played by Orlando Colon, suffered a knee injury at the 6/22 WWE live event in Newark, Delaware. The injury occurred during a 6-Man Tag match involving Los Matadores & El Torito against Heath Slater, Tyson Kidd & Hornswoogle. It is said that Colon left the arena on crutches, but it is unknown how serious the injury is. 

Source: The Wrestling Observer/Figure Four Online, PWInsider.com