If Conor McGregor wants another crack at a top flight boxer, Keith Thurman says he's ALL THE WAY DOWN -- telling the Irishman straight up, "Box me, baby!!"
Of course, Thurman -- the WBA super welterweight champ -- is gearing up to face Manny Pacquaio on July 20 ... but says he's heard about Conor's desire to get back in the ring and wants that fight!
"You know you make more money in the boxing ring anyway. Box me, Conor!"
Thurman's not kidding .