Matthew Stafford hurt his left (non-throwing) hand in Saturday night's preseason game against the Raiders.

The Lions quarterback was hit in the hand by a helmet in the second quarter.

"It was just scary to look down and see your hand swelling up by the second," Stafford said. "That kind of freaked me out. The skin kind of just grew by the second. I didn't know what was going on."

X-rays were negative and Stafford is expected to be fine by the team's Sept. 9 opener.