Counting Williams and Walton, the Heat have 16 players under contract, allowed to carry as many as 20 during the offseason, before a mandatory cutdown to 15 by opening night. The Heat also can carry up to two two-way players beyond that deadline, with Walton already signed to such a deal, an agreement that limits his 2017-18 NBA exposure to a maximum of 45 regular-season days with the Heat, unless converted to a standard contract.