SPARTANBURG, S.C. (AP) — Kelvin Benjamin made an impressive return to the football field Thursday night as the defending NFC champion Carolina Panthers opened training camp. In his first practice since tearing the ACL in his left knee last August, Benjamin made four tough catches, reminding the more than 22,445 fans at Gibbs Stadium of just how valuable the 6-foot-5, 245-pound wide receiver is to the Panthers offense. Coach Ron Rivera admitted he was impressed. "I don't want to say he was in top form, but he was in pretty doggone good form," Rivera said. Benjamin had 73 receptions for 1,008 yards and nine touchdowns as a rookie in 2014, but tore his ACL last August at training camp and missed the team's run to the Super Bowl. Benjamin ran swift, sharp routes and showed no ill effects from last year's surgery.Read more on NewsOK.com