Ronnie O’Sullivan has called Ali Carter “not a nice person” and “a nightmare” to play against after being criticised by the beaten Masters finalist.
On Sunday, O’Sullivan rallied from 6-3 down to beat Carter 10-7 and win a record-extending eighth Masters title.
Afterwards, Carter accused the world number one of “snotting” – clearing his nose – “all over the floor”.
A World Snooker Tour spokesperson said the whole incident between the two players was “under review”.
The WST did not go into what the ramifications could be or a timeframe.
On Tuesday, O’Sullivan beat Pang Junxu of China 4-2 at the World Grand Prix in Leicester.
Following the win, world number one O’Sullivan told ITV he will “definitely be missing a few tournaments” after this.
“I shouldn’t even really have come here to be honest, but it is alright so I thought I would just turn up. In hindsight, I shouldn’t have come,” he added.
“I would like to think if I fell off the tour I might get a wildcard, but knowing World Snooker they would probably say no.
“I am just trying to keep my tour card really, that’s all I am trying to do.
“I am not bothered about tournaments, it is not my favourite bit to be fair.”