Stephenson hit a solo homer to give the Reds an early lead. Soroka reported his symptoms after the inning, and the Cubs pulled him from the game. He’s headed to the 15-day injured list with discomfort in his right shoulder, manager Craig Counsell said after an eventual 3-2 loss.

Starting pitcher Michael Soroka is heading to the injured list after exiting his first start as a member of the Chicago Cubs early on Monday.