ORLANDO, Fla. — Baseball Commissioner Rob Manfred says losing regular-season games to a work stoppage would be a “disastrous outcome,” yet spring training remains on hold as the threat to opening day increases.

With the second-longest work stoppage in baseball history stretching into its 71st day, Manfred said teams will make a “good-faith, positive proposal in a effort to move the process forward” when negotiations with the players’ association resume Saturday. It will be just the fifth economic bargaining session since the five-year labor contract expired.