Ultimate Fighting Championship (UFC) former champion Conor McGregor dropped a huge hint Thursday that he'll fight in 2019.

McGregor has been indicating at a return for months now but the latest move on social media seems like a strong one, giving massive hopes to his fans.

The official account of UFA wished Frankie Edgar a happy birthday and to the same post The Notorious replied, "Happy birthday Frankie, see you in December." The American fighter, Edgar, apparently had already confirmed his availability for the bout already. "Thanks, pal, I said yes already it's on you and @danawhite to make it happen," he responded to McGregor.

That was followed by the Irish putting pressure on UFC President Dana White to make the bout happen in two months and he also added that he would donate his fight money to charity.

The 31-year-old McGregor has not fought since his fight against Khabib Nurmagomedov at UFC 229 in October 2018. Nurmagomedov triumphed the fight through fourth-round submission before both the Mixed Martial Arts (MMA) fighters were suspended for the chaos evolved after the bout.

If Edgar indeed fought against McGregor, that would put an end to his plans to move to the bantamweight category in UFA following his loss to Featherweight Champion Max Holloway.

Conor McGregor has apologised for his unprovoked attack on a man in a Dublin pub
Conor McGregor GETTY IMAGES NORTH AMERICA / Ethan Miller

Just earlier this month, Edgar told ESPN he would put his move to bantamweight on hold for a big money fight against McGregor.

"I just hear I'm the guy he wants to come back to. I told him I want to fight him, I told the UFC I want to fight him. But honestly, I don't think the UFC wants that fight. I don't know whether they don't want it because they don't want him to lose to me or they don't think they can build it. I don't know what it is. But ultimately … if he forces it, it could happen. He can make the call. Conor, if you want to do this, let's do it, baby," Edgar added.