Kelvin Benjamin suffers sprained knee; Michael Oher, Olivier Vernon scuffle

SPARTANBURG, S.C. – Observations from the Carolina Panthers’ joint practice against the Miami Dolphins on Wednesday at Wofford College:

Benjamin injured: The most vivid image occurred early when Carolina wide receiver Kelvin Benjamin went to the ground in pain while making a cut against Miami defensive back Don Jones during a one-on-one drill. Benjamin immediately grabbed his left knee as he writhed in pain. Initial reports were the 2014 first-round pick suffered a sprained knee. Quarterback Cam Newton helped the second-year player onto a golf cart before resuming practice.

Scuffle: After a lengthy lecture to players by Carolina coach Ron Rivera and Miami's Joe Philbin prior to practice, Dolphins defensive end Olivier Vernon and Panthers left tackle Michael Oher got into a scuffle during a speed-rush drill. Oher did a nice job of blocking Vernon, who went to the ground. With Oher standing over him, Vernon jumped up and took a swing. Players from both teams wound up in a big pile separating the two before it could escalate.

Big hit: Players were warned not to tackle, so when Miami defensive back Louis Delmas nailed Carolina tight end Scott Simonson that drew a warning from Rivera. The coach rushed in and said, “Hey, hey, let’s be smart now.’’

Owner sighting: Carolina team owner Jerry Richardson made his first appearance at camp in Spartanburg.

Good work: In between the injuries and scuffle both teams got in what Rivera described as a good practice with helpful reps. The crowd, which included a large number of Miami fans in addition to Carolina fans, seemed to enjoy it, too. There were a lot of "What's up, Suh?" shouts for Miami defensive tackle Ndamukong Suh.