Danny Ainge said Thursday he wasn’t trying to trade Rajon Rondo, and two league sources backed him up yesterday in the wake of a report that the Celtics president of basketball operations was in discussions with Dallas about his point guard.

“The Celtics haven’t had any conversations with Dallas about Rondo,” said one source. “That’s ridiculous. There’s no truth to it. What in the world does Dallas have to offer for Rondo?”

The second source pointed to the state of the Dallas roster.

“They’re trying to rebuild around a 35-year-old power forward Dirk Nowitzki,” he said. “They have a lot of old expiring contracts, and that’s about it.”