Sir Bobby agreed to Gregory’s request only for the full back to turn it down, saying: "I told John Gregory and Derby County thanks but no thanks.
"I have been out of the United first team for most of the season but I still think I can do a job here and I want to stay and fight for my place."
Elliott may be in line for a rare first-team appearance at Elland Road on Saturday with Olivier Bernard suspended, but the smart money is on Andy Griffin and Aaron Hughes filling the full back slots.