Us Mag is claiming the doctor may be out on Grey's Anatomy. It now looks possible that Isaiah Washington (aka Dr. Preston Burke) may be leaving the hit ABC show.

"He will not be back as a series regular," a source close to ABC tells Us Magazine, noting that the star, 43 - who has been under fire ever since calling costar T.R. Knight, 34, a "faggot" - "could possibly show up for a few episodes" next season. Still, Washington's rep insists, "Isaiah is not off the show. We do not have a contract yet, but we expect to."