Van Slyke, recovering from left shoulder bursitis, went 1-for-5 with a double, run scored and three strikeouts as the designated hitter.
Kemp struck out four times and Van Slyke three times on Saturday night. The Dodgers hope to activate both players during this week's homestand.
Ken Gurnick is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.