Conor McGregor has dealt the UFC another blow after announcing his third retirement in the space of four years as he revealed: "I'm a bit bored of the game".
The former featherweight and lightweight champion is the biggest draw in mixed martial arts, having been a headliner in the UFC's three highest grossing pay-per-views and five of the top six.
However, hot on the heels of light-heavyweight champion Jon Jones and welterweight contender Jorge Masvidal asking to be released from the UFC, McGregor unexpectedly called time on his career in the early hours of yesterday morning.
Following the conclusion of UFC 250, the 31-year-old wrote on Twitter: "Hey guys I've decided to retire from fighting.
"Thank you all for the amazing memories! What a ride it's been! Here is a picture of myself and my mother in Las Vegas post one of my world title wins! Pick the home of your dreams Mags I love you! Whatever you desire it's yours."
The brash Dubliner has made similar statements of intent in 2016 and 2019 before making swift u-turns on both occasions.
But he told ESPN yesterday: "I'm a bit bored of the game. I'm just not excited about the game. I don't know if it's no crowd.
"I don't know what it is. There's just no buzz for me.
"All this waiting around. There's nothing happening. I'm going through opponent options, and there's nothing really there at the minute. There's nothing that's exciting me."
McGregor made an explosive return to the octagon in January after 15 months of inactivity, stopping American veteran Donald 'Cowboy' Cerrone in just 40 seconds to take his MMA record to 22 wins and four defeats.
A rematch against fierce rival and lightweight champion Khabib Nurmagomedov had been mooted for later this year, while speculation of a 'superfight' against former middleweight titlist Anderson Silva has been steadily building, with the Brazilian great publicly touting a showdown over the weekend.