Ronnie O'Sullivan
In 2013, English snooker player Ronnie O'Sullivan retired from the game to work on a pig farm.
The Independent
Why do we want Ronnie O'Sullivan to soldier on through another year of angst? Why do we argue with those who say that he should make up his mind about either playing snooker or hiding away down on the farm and then give us all a bit of peace?
Comeback
Ronnie O'Sullivan has since come back from his retirement, but has again expressed his boredom with the sport.
Daily star
Ronnie O’Sullivan has said that despite his recent victory in the European Masters ealier this week, he now finds snooker boring and does not give a "monkey's" about winning the World Championship again
World number one
Despite Ronnie O'Sullivan being the current world champion, and world number one, Ronnie O'Sullivan has once retired from snooker, and continues to express his boredom with the sport.
Wikipedia
Ronald Antonio O'Sullivan OBE (born 5 December 1975) is an English professional snooker player who is the current world champion and world number one. Widely recognised as one of the most talented and accomplished players in the sport's history, he has won the World Snooker Championship seven times, a modern-era record he holds jointly with Stephen Hendry. He has won a record seven Masters and a record seven UK Championship titles for a total of 21 Triple Crown titles, the most achieved by any player. He holds the record for the most ranking titles, with 39, and has been world number one on multiple occasions.