What happened: The appearance is set for the team shop at 2200 Texas Avenue, beneath the north-end marquee at Shell Energy Stadium. Regular Thursday hours run from 11 a.m. to 4 p.m.
Why it matters: The event adds another club-history gathering during Houston's 20th-anniversary season. A separate pre-match ceremony is planned for members of the 2006 championship team.
By the numbers: Houston won consecutive MLS Cups in 2006 and 2007; all three scheduled guests played for the club during both seasons.
What to watch: Supporters can check club channels for event-specific updates before Thursday.