Golden State guard Stephen Jackson aggravated his lingering left hand injury against the Spurs on Saturday and believes that it could be serious.

Jackson was hit in his hand with 7:30 left in the first quarter and did not play in the second half.

"It's not getting any better," Jackson said. "I think it's more than just a jam; there's something that's really wrong, so if it comes down to (sitting out); I don't want to hurt my team or hurt myself. Like I said, I want to (find out) if there's something wrong because I definitely think so."

Jackson is set to undergo an MRI on Monday.