Conor McGregor's return to the UFC Octagon has been put on the backburner ... as the combat sports legend says he's got some other business to handle first -- a boxing exhibition with Logan Paul.
Notorious dropped the bombshell news early Tuesday morning ... denying rumors he's slated to take on featherweight champion Ilia Topuria in Dana White's organization.
Instead, he says he's got his sights set on the WWE Superstar .