The possible Floyd Mayweather and Conor McGregor super fight has been in the works for basically an eternity now, but never anything more.
It's been on and off more times than Mayweather v Manny Pacquiao, but at least we got that fight eventually.
A couple of weeks ago, the retired and undefeated Mayweather suggested that despite his best efforts, a fight with McGregor had proven too difficult to make.
However, after McGregor brought up Pretty Boy's name in his UFC 205 press conference ahead of his fight with Eddie Alvarez in November, the rumours have begun circulating again.
TMZ Sports caught up with Money yesterday and the 39-year-old didn't appear half as despondent as he had previously about the potential fight.
In the video, Mayweather says: "Are we going to fight? I just don't know." The former multi-weight king also praised the Notorious One as a great fighter who is "very good" at stand-up fighting.
The Michigan-born boxing legend was also asked if he was planning to stay retired. Mayweather responded: "For a couple bucks, you just don't know."
There are several obstacles standing in the way of this fight. What does the winner really get? It would be a grand spectacle, but neither man's legacy would be enhanced in their respective fields at the end of the day.
Ultimately, both men are two of the absolute best at promotion and drawing cash. They are box office attractions for this very reason and they stand to make as much money in their day-to-day endeavours just talking about the dream matchup, than actually making it happen.
We suspect they know as much.