PORT Adelaide captain Connor Rozee will require surgery after scans revealed a high-grade hamstring tendon rupture.

The Power skipper was hurt in Sunday's win over Essendon, and the club has not yet put a timeframe on the 26-year-old but flagged he would be sidelined for "an extended period".

Rozee reported numbness in his leg following the incident, with the club revealing the sensation was due to forceful traction of the nerve.

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"It sort of went numb, my leg, and I couldn't walk on it," Rozee said post-game.

"I was hoping it was some sort of nerve thing but once that wore off, it became a lot sorer and a bit more isolated.

"The one positive is hopefully I get the second half of the season, if it's not a great result which I am eyeing off at the moment."

Rozee was among a spate of big names to suffer hamstring injuries including Gold Coast's gun recruit Christian Petracca, Richmond stalwarts Tom Lynch and skipper Toby Nankervis, Adelaide signing Callum Ah Chee, Western Bulldogs veteran Tom Liberatore and St Kilda's Anthony Caminiti.

Power coach Josh Carr conceded after Sunday's game that he was likely to be without Rozee for some time.

"He's obviously a bit flat. It doesn't look great," he said.

"Initially there was a bit of nerve damage and he couldn't feel his leg and reviewing it after the game, it looks likely a tendon involved. Fingers crossed it's not, but that's the most likely scenario.

"It sours (the win) because our skipper has what could be a significant injury, and we don't want that for anyone in our football club.

"We're flat about that, but someone else gets an opportunity to come in and fill that role."

Miles Bergman will also miss the Power's clash against West Coast on Sunday after spraining his ankle and suffering heel bruising during round two, with further assessment required to determine his availability for round four.