Kings are preparing a big offer for Rajon Rondo

In a rumored blockbuster deal, the Sacramento Kings are reportedly trying to put together an enticing trade package for Boston Celtics point guard Rajon Rondo, a source close to situation reported on Sunday.

The Kings have already made two huge transactions early this season. One was done to acquire versatile power forward Derrick Williams from the Minnesota Timberwolves while the latest was to nab star player Rudy Gay from the Toronto Raptors.

But the Kings are apparently just getting started as they set their sights on one of the finest pass-first point guards in basketball - Rondo.

According to a league source, the Kings are proposing a package that would send point guard Isaiah Thomas, shooting guard Ben McLemore, veteran swingman Marcus Thornton, power forward Jason Thompson and two future first-round picks to the Celtics in exchange for Rondo.

Rondo, who is currently rehabilitating from ACL surgery, is reportedly close to make his return on the floor, probably as early as January.

Celtics general manager Danny Ainge stressed several times that the Celtics don't have any intention of trading their franchise player. However, rumors have been buzzing that the Celtics front office might have a change of heart later on, especially if a trade offer is too enticing to turn down.