In his suit, Miami-based attorney Larry McGuinness accuses Spurs coach Gregg Popovich of inflicting "economic damages" on fans who paid premium prices to attend the game, the San Antonio Express News reported Wednesday.
NBA teams vary game ticket prices with those for higher-profile opponents costing more.
"It was like going to a restaurant and ordering the most expensive item on the menu -- lobster -- and you get a horrible chicken fried steak," said McGuinness.
The class-action lawsuit asks the Spurs for the differential between premium and lower-tier tickets.
McGuinness said if he wins, he'll donate his portion to Superstorm Sandy relief.