After leaving Thursday's preseason game against the Patriots in the first quarter with a foot injury, Cam Newton was seen headed to the bus in a walking boot following the contest.
Albert Breer of Sports Illustrated reports Newton was diagnosed with a sprain in his left foot after getting x-rays.
The Panthers quarterback was making his preseason debut but was forced to leave after injuring his left foot.
Following the 10-3 loss in New England, coach Ron Rivera told reporters he did not know the severity of Newton's injury.