(AP) – Conor McGregor announced his retirement for the third time in four years.

McGregor abruptly made his latest dubious declaration Sunday morning on his Twitter account, where the former two-division UFC champion also announced his retirement in 2016 and 2019.

The 31-year-old Irish superstar revitalized his combat sports career in January with an impressive first-round stoppage of Donald “Cowboy” Cerrone at UFC 246. McGregor (22-4) hadn’t won a fight in a mixed martial arts cage or a boxing ring since 2016, but he remained the UFC’s brightest star and biggest financial draw.