On Tuesday the duo was back at it. Mayweather ignited the latest version of the social media reality show on Monday, writing "#MCM Mayweather Crushes McGregor," on his Twitter account.
The post showed a scene from Mayweather's Aug. 26 victory against McGregor.
On Tuesday, Mayweather posted a video of himself sporting shorts and walking inside an octagon, teasing his future in mixed martial arts and a possible UFC clash against McGregor.
Hahahaha very good. Keep up the good work my son.— Conor McGregor (@TheNotoriousMMA) January 30, 2018
"Hahahaha very good. Keep up the good work my son. Yours sincerely, Senior," McGregor responded on Twitter.
McGregor went back to Twitter an hour later to post a photo with his son, Conor, Jr. "[Expletive] the Mayweathers," he wrote on the post.
McGregor Jr. was born May 5.
"The Notorious" wasn't finished posting on social media about his latest exploits. He posted a video of his acceptance speech Tuesday for winning a UFC Fighter of the Year award. On Wednesday he was back to cruising around in a yacht and sipping a drink.
"Stay hydrated," he wrote.
It appears Mayweather is putting the onus on the Irishman to make a future UFC bout happen.