Two more Chinese players have been suspended from the World Snooker Tour.
The players are part of a match- fixing investigation.
The first round of the Masters was going to be played on Sunday.
A number of Chinese players have been suspended.
The decision can be appealed by both Zhao andZhang.
Any potential charges will be considered once the wider investigation is complete, according to the WPBSA.
In York, Zhao defeated Luca Brecel to win the 2021 UK Championship.
He was the only non-British to win the event.
The results of a misconduct investigation led to the banning of the man.
The players were suspended in early December.
The seventh Chinese player to be sanctioned wasYan Bingtao, who won the Masters in 2011.