NEW YORK (AP) — Major League Baseball owners gave the go-ahead Monday to making a proposal to the players’ union that could lead to the coronavirus-delayed season starting around the Fourth of July weekend in ballparks without fans, a plan that envisioned expanding the designated hitter to the National League for 2020.

Spring training could start in early to mid-June, a person familiar with the decision told The Associated Press. The person spoke on condition of anonymity because details of the plan were not announced.

MLB officials are slated to make a presentation to the union on Tuesday. An agreement with the players’ association is needed, and talks are expected to be difficult — especially over a proposal for a revenue split that would be unprecedented for baseball.

“Bear with me, but it feels like we’ve zoomed past the most important aspect of any MLB restart plan: health protections for players, families, staff, stadium workers and the workforce it would require to resume a season,” Washington pitcher Sean Doolittle tweeted. “What’s the plan to ethically acquire enough tests? … What’s the protocol if a player, staff member, or worker contracts the virus?”

Each team would play about 82 regular-season games: against opponents in its own division plus interleague matchups limited to AL East vs. NL East, AL Central vs. NL Central and AL West vs. NL West.

Postseason play would be expanded from 10 clubs to 14 by doubling wild cards in each league to four.

Teams would prefer to play at their regular-season ballparks but would switch to spring training stadiums or neutral sites if medical and government approvals can’t be obtained for games at home. Toronto might have to play home games in Dunedin, Florida.

“We’ll see where we will be in July,” said California Gov. Gavin Newsom, whose state is the home of five MLB clubs and who has talked with baseball Commissioner Rob Manfred. “We certainly look forward to Major League Baseball and all sports resuming. But again, the question is when and that will be determined on the basis of public health and public safety and the spread of this virus.”

The All-Star Game, scheduled for Dodger Stadium in Los Angeles on July 14, likely would be called off.

Teams will propose that players receive the percentage of their 2020 salaries based on a 50-50 split of revenues MLB receives during the regular-season and postseason, which likely will be among the most contentious aspects of the proposal during negotiations with the players’ association.

That proposal would take into account fans being able to return to ballparks at some point, perhaps with a small percentage of seats sold at first and then gradually increasing.

Baseball players have refused to consider even the frameworks for the type of revenue splits that have been agreed to by unions in the NFL, NBA and NHL. The last attempt by baseball owners to gain a salary cap with a revenue split led to a 7 1/2-month strike in 1994-95 that wiped out the World Series for the first time in 90 years.

Rosters would be expanded from 26 to around 30. With minor leagues shuttered, there likely will be the addition of about 20 players per club akin to the NFL’s practice squad.

Teams would have the option of holding the resumption of spring training at home or at their facilities in Florida and Arizona. Most teams based in Florida appear to be leaning toward that option, while Arizona-based clubs are inclined to work out at home rather than deal with June heat in the Phoenix area.

Players and teams agreed to a deal on March 26 that called for each player to receive only a portion of salary, determined by what percentage of a 162-game schedule is played. As part of that deal, if no season is played each player would receive 2020 service time matching what the player earned in 2019.