The excecutives spoke on condition of anonymity because they were not authorized to discuss the matter publicly.
Hawes, who played for Philadelphia and Cleveland last season and made $6.5 million, will receive the Clippers' full mid-level exception, which starts at $5.305 million per year.
There have been reports that Clippers Coach and President
The 7-foot-1 Hawes is the type of backup big man Rivers wants to play behind starting power forward
Hawes has the ability to stretch the floor with his outside shooting. He shot 41.6% from three-point range last season, and averaged 13.2 points and 8.3 rebounds.
Hawes also has become a good free-throw shooter, making 78.3% and 77.7% the last two seasons, 70.3% over his seven-year career.
Like all free agents who have agreed to deals since the free-agency period opened July 1, Hawes can't sign his contract until Thursday, when the NBA lifts is moratorium.
Yahoo Sports first reported the agreement between the Clippers and Hawes.