McMillan jumped in an attempt to make a catch in the first quarter of Saturday's preseason game with the Pittsburgh Steelers when he was undercut by Steelers defensive back Daryl Porter, causing McMillan to land on the back of his head with his body folding awkwardly.

After going up for a pass, McMillan landed awkwardly on his head and neck following a huge hit from Steelers cornerback Daryl Porter Jr. He was forced to leave the game and was later seen in a neck brace while being escorted to the locker room.