Manager Don Mattingly said all players have been informed of their roles, but the roster won't be announced until it is submitted to Major League Baseball on Friday. Puig on Wednesday told the media he was informed that he's on the roster.
Van Slyke, who first injured the wrist Sept. 15, returned five days later but reinjured the wrist when brushed by baserunner Marlon Byrd while taking a throw at first base last week.
A cortisone injection did not relieve the inflammation. Van Slyke said he was able to throw but not hit.
While Puig was out of the lineup in September with a strained hamstring, newly acquired Justin Ruggiano took his place and was productive as a right-handed-hitting outfielder. He figures to join Puig as an option for Mattingly
Ken Gurnick is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.