With the current collective bargaining agreement set to expire June 30, both sides say they hope frequent meetings can prevent a lockout. They sat down last week in Miami, had a larger gathering here, and Silver wouldn’t rule out even adding a third day here if things went well Wednesday.

Owners are seeking a hard salary cap to replace the current system that allows teams to exceed it under certain exceptions, and have sought to reduce player salary costs by about $750 million annually. Stern has said the central issue is the split in revenues, with the players currently guaranteed 57 percent.

The union has offered a reduction of the guarantee and argues the system has largely worked, saying improved revenue sharing among owners would help with their losses.

“We know, we understand that all of the jockeying is going on in the NFL: litigation, appeals, motions, motions to come, court hearings set for September, which seems like an awful long time away for us,” Stern said. “And so what it does is cause us to say we’ve got to keep on talking to try to have a breakthrough here, and we’re going to continue that effort tomorrow.”