Carolina Panthers defensive tackle Star Lotulelei, left, and defensive end Charles Johnson, right, work on technique during practice on Sunday, August 2, 2015 at Wofford College in Spartanburg, SC.
Carolina Panthers defensive tackle Star Lotulelei, left, and defensive end Charles Johnson, right, work on technique during practice on Sunday, August 2, 2015 at Wofford College in Spartanburg, SC. Jeff Siner jsiner@charlotteobserver.com
Carolina Panthers defensive tackle Star Lotulelei, left, and defensive end Charles Johnson, right, work on technique during practice on Sunday, August 2, 2015 at Wofford College in Spartanburg, SC. Jeff Siner jsiner@charlotteobserver.com