The NHL and the Players' Association are meeting for the third straight day to try to resolve the lockout.
The sides met for about four hours Saturday, and they agreed to meet again Sunday. The agenda likely will include discussions on health and safety issues.
Core economic issues still weren't on the agenda Saturday when the opposing groups got together again at the NHL office.
Sunday's talks came three days after the league canceled the remaining preseason games. The regular season is scheduled to start Oct. 11.
If a deal isn't reached soon, regular-season games will be in danger of being lost. The NHL canceled the entire 2004-05 season because of a lockout that eventually led to the collective bargaining agreement that expired this month.