Hoerner was removed from Friday's game against the Diamondbacks due to left-sided neck tightness, Taylor McGregor of Marquee Sports Network reports.
The 28-year-old doubled and scored during the opening frame but was replaced by a pinch hitter during the second inning. The severity of the injury isn't clear, but the Cubs could offer some more information after Friday's contest. Hoerner should be considered day-to-day for now.