Chicago Cubs center fielder Ian Happ left Sunday's game against the Cincinnati Reds following a collision with teammate Nico Hoerner.
Hoerner and Happ were both attempting to catch a shallow fly ball to center. While Happ returned to his feet, Cubs trainers helped place him onto a cart.
Willson Contreras replaced Happ in the lineup, while Kris Bryant shifted from left field to center in a series of defensive moves to account for his absence.
This article will be updated to provide more information on this story as it becomes available.