SPARTANBURG, S.C. (AP) - Carolina defensive tackle Ron Edwards has a torn triceps muscle and rookie offensive lineman Zack Williams has a torn ACL.
Both injuries occurred during practice Thursday. It was not immediately known how long Edwards might be out. Williams is expected to have surgery and miss the season.
Carolina spokesman Charlie Dayton said Friday that coach Ron Rivera will address the injuries after the team's FanFest at Bank of America Stadium in Charlotte, N.C., on Saturday.
Edwards was a free agent from Kansas City who signed a three-year deal worth $8.25 million with the Panthers last week. He has spent 10 years in the NFL, the last five with the Chiefs, with 192 career tackles and 15 1/2 sacks.
Williams was a sixth-round draft pick this spring from Washington State.