But reaching a deal with one of the three casino operators along the strip increases the pressure on the other two companies to agree to similar deals before Friday morning’s strike deadline.

If they vote it down, they could still go on strike. The tentative deal will now be presented to rank-and-file members for a ratification vote. The nine casinos on the strip owned by the company are Caesars Forum, Caesars Palace, Flamingo, Harrah’s, Horseshoe, Paris, Planet Hollywood, The Cromwell and The Linq. It covers 10,000 union members who work as cooks, bartenders, waiters and waitresses and housekeepers at the nine casinos owned by Caesars Entertainment.

The details of the agreement, which was announced in a tweet by the union, are not yet available, but the union said it was reached after 20 straight hours of negotiations. A tentative five-year labor deal has been reached between the Culinary union and Caesars Entertainment to avert a potential strike at its nine casinos along the Las Vegas Strip, although nine other casinos still face possible walkouts come Friday morning.