Shaun Murphy launched an astonishing attack on teenager Si Jiahui after his surprise defeat to the Chinese amateur at the UK Championship on Tuesday night, with the former world champion claiming that his opponent shouldn't even have been allowed to take part in the Triple Crown event.
Murphy was bundled out of the tournament at the first-round stage by 19-year-old Si, who is playing as an amateur after dropping off the tour at the end of last year.
Afterwards the 39-year-old launched a tirade against World Snooker Tour for allowing players like Si to compete via the 'top-up’ system, in which the top-ranked players outside the tour gain entry if the 128 available professional slots cannot be filled.
Murphy told BBC Radio Five Live: "I am going to sound like a grumpy old man but that young man shouldn’t be in the tournament. It is not fair, it is not right.
"I feel extremely hard done by that I have lost to someone who shouldn’t even be in the building.
"I don’t know why we as a sport allow amateurs to compete in professional tournaments. This is our livelihood. This is our living. We are self-employed individuals and not contracted sportsmen. We don’t play for a team.
"The other 127 runners and riders in the tournament, it is their livelihood, too. It is wrong, in my opinion, to walk into somebody who is not playing with the same pressures and concerns I am.
"He played like a man who does not have a care in the world, because he does not have a care in the world. It is not fair, it is not right.
"Amateurs should not be allowed in professional tournaments, the end. This is our livelihood. This is how I put food on the table. This is how I earn money. Since turning professional at 15, I have earned the right to call myself a professional snooker player. He hasn’t done that. He shouldn’t be on the table."
World Snooker Tour issued a robust response, saying it "strongly disagreed" with Murphy’s claims and insisting the opportunity for young amateur players to compete on the biggest stage formed a "crucial part" of their development.
The organisation said in a statement: "Si Jiahui earns a place in ranking tournaments this season as one of the leading players on the 2021 Q School rankings.
"While he may have amateur status, he deserves his place in our events, based on his results.
"Amateurs play under the same rules as professionals, they can earn prize money and places on the World Snooker Tour based on results.
"Many elite amateur players like Si Jiahui train and compete full-time in the hope of earning a guaranteed tour place, therefore they are competing under significant pressure with no guarantees.
"Providing opportunities for the best amateur players is important for our growth as a sport and that is something that Shaun benefitted from during his early days as a player.
"We have come a very long way as a global sport over the past decade and that has partly been down to the structures we have built both at professional and grassroots level worldwide.
"For the best young players, the chance to compete on the big stage is a crucial part of their development and the development of the sport as a whole.
"We respect Shaun’s opinions, but in this case we strongly disagree with his comments."
This season there are only 122 professional players on the World Snooker Tour, mainly because a number of the amateur tournaments which offer tour cards as prizes were not played due to the pandemic.
This means the best amateurs, ranked by virtue of their performances at Q School – in which Si finished fifth – are effectively guaranteed a ‘top-up’ place in 128-strong tournaments.