But it was unclear whether Grant's hiring was a closed issue, the person said. Reports that Grant had been offered $1 million an episode were inaccurate, the person said, adding any Sheen replacement would be paid less than that.
Sheen was among TV's highest-paid actors at a reported $1.8 million an episode.
Grant's publicist did not immediately return a call for comment.
The Grant-"Two and a Half Men" negotiations were first reported by the Deadline Hollywood website.