The labour dispute between the National Lacrosse League and the Professional Lacrosse Players' Association has now crept into the regular season.

The NLL announced on Thursday that the games scheduled for Dec. 1 and 8 have been cancelled as the league and players continue to go back-and-forth during Collective Bargaining Agreement negotiations.

"The PLPA has instructed its players not to attend training camps or submit to physicals, making the formation of rosters and operation of the opening of the season impossible," said the NLL in a media statement.

The league rejected the players association's latest counterproposal on Wednesday.

The Saskatchewan Rush was scheduled to open the regular season on Saturday, Dec. 1 against the Georgia Swarm in Atlanta and then host the Colorado Mammoth for their home opener on Saturday, Dec. 8. Both games have now been cancelled.

"We will provide further communications on the 2018-19 schedule as updates become available," stated the NLL.