John Isner, Sam Querrey and Mike and Bob Bryan will participate in exhibition tennis matches at Atlanta Athletic Club on Sept. 25.

The event, the “Atlanta Tennis Classic,” will benefit Mercy Care, a provider of heathcare for Atlanta’s homeless and uninsured.

The Atlanta Tennis Class is scheduled to start at 6 p.m. and will feature a singles match between Isner and Querrey, followed by the duo playing the Bryan brothers in a doubles match. The Bryan Brothers Band will then host a concert.

Isner is a former All-American at Georgia and the three-time defending champ of the BB&T Atlanta Open. The Bryan brothers have won more than 100 doubles titles, including this year’s BB&T Atlanta Open, and are considered the best team in the sport’s history.

For information on tickets, go to www.etix.com or call 800-514-3849.