Brown was a limited participant in practice on Friday, while Seattle held a walkthrough practice. Brown suffered a shoulder injury. He has started three of the last four games, including last week's wild-card round win over Arizona and is Carolina's best threat in the deep passing game.
Moeaki suffered a calf injury in practice this week and Seahawks coach Pete Carroll said he would be a game-time decision.
AP NFL websites: www.pro32.ap.org and www.twitter.com/AP-NFL