Donald Sterling's Wife -- ATTENDS CLIPPERS GAME ... Traveling with Team

2:29 PM PT -- Shelly just spoke with a sideline reporter at the game (off-camera) ... and was adamant she is NOT a racist.

Donald Sterling might not be welcome at the Clippers game, but his estranged wife is -- in fact, TMZ Sports has learned Shelly Sterling is even traveling with the team.

Sources connected with the Clippers tell us ... Shelly is still involved with the Clippers organization -- and is well-liked and respected by the players.