Panthers WR Benjamin carted off field with knee injury

Coach Ron Rivera said the preliminary diagnosis is a sprained knee, but Benjamin will have additional tests to make sure there is no ligament damage. Rivera said the team hopes to know more information later Wednesday.

"Everybody is trying to be positive and hopefully the good news will come later this afternoon," Rivera said after practice.

It's unclear how long Benjamin would be sidelined if he has a sprained knee.

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The injury occurred midway through practice when Benjamin slipped as he made a cut while running a crossing route. There was no contact on the play.

He fell to the ground and then sat up holding his left leg as players from both teams gathered around him and took a knee.

Trainers attended to Benjamin and quickly called for the cart to take him into the locker room. Quarterback and close friend Cam Newton helped Benjamin into the cart.

"He went to plant and make a swim move and without any contact just kind of went down," Rivera said. "It was unfortunate and it's one of those things that could have happened in any drill."

The Panthers cannot afford to lose Benjamin, their best wide receiver and a favorite weapon for quarterback Cam Newton. He is coming off a stellar rookie season, catching 73 passes for 1,008 yards and nine touchdowns and is expected to be the main target for Newton this season in the passing game.

Rivera said rookie wide receiver Devin Funchess also tweaked a hamstring and could miss practice Thursday against the Dolphins.

Dolphins coach Joe Philbin didn't have an update on safety Louis Delmas, who was carted off the field with a leg injury shortly after Benjamin was taken to the locker room.

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