Conor McGregor's one and only venture into professional boxing didn't end so well.
The UFC superstar took up the challenge of boxing legend Floyd Mayweather in what was one of the biggest events in combat sports history.
Ultimately, the fight would go exactly as many expected it to, with Mayweather outclassing his inexperienced opponent to win convincingly.
Since that infamous 2017 night, rumours just won't go away about McGregor having yet another crack at the world of boxing.
While a rematch with Mayweather has looked the most likely of the scenarios, a possible clash with Manny Pacquiao has been muted and now, retired fighter Oscar De La Hoya has even had his say.
De La Hoya has been bowed out 11 years ago but feels that he could make light work of the Irishman in the ring, despite his long absence from professional action.
"Oh, come on, brother," De La Hoya told CBS Sports' State of Combat podcast when asked how that fight would go.
Two rounds. Because one thing about me, I went for the kill, always
"And look, Conor McGregor is - I love him in The Octagon. I respect him. I watch him all the time.
"But the boxing ring is a whole different story. It's a whole different story."
De La Hoya's last bout came on a forgettable night in which he was beaten by the aforementioned Pacquiao in December 2008.
He does, however, boast a pretty enviable record of 39 wins out of 45 fights and one can't help but be intrigued by the prospect of him dusting off an old pair of gloves to step back into the ring with McGregor.
It does look unlikely though, and you feel that McGregor will just laugh off the comments and carry on with his pursuit of further UFC glory.
Were De La Hoya to get a shot at 'The Notorious' though, you can be sure that the world will be watching to see if he can come good on his two-round pledge.