Geelong coach Chris Scott says Jeremy Cameron has been sent for scans after taking a body shot but is hopeful the gun forward has not suffered a serious injury.
The Cats smashed Essendon by 66 points in a bruising encounter on Saturday afternoon and Cameron came off worse following a collision with Jayden Laverde.
The incident happened in the first quarter and although Cameron tried to soldier on it was no use. He left the field never to return and was sent to hospital for scans.
It is thought Cameron may have suffered a hip pointer injury while he was also struggling to breathe after leaving the field.
That points to a possible rib or lung injury and scans are needed to ensure he has suffered no internal injury.
"He seemed to be OK," Scott said after the game. "His knock was to the body so there's no concussion issue there. Jeremy just couldn't get going.
"We were prepared to wait as long as possible but he was just going downhill and not improving. "We've sent him off for a precautionary scan but the feedback I've got is they're comfortable he's OK.
"It was sort of a body shot and somewhere between the chest and the hip so the scan is to double check the internal status."
Essendon are hoping to make finals this season and coach Ben Rutten was seriously disappointed with the performance his side put in.
"That wasn't an indication of what we've been doing throughout pre-season and how we've been training," Rutten said. "It was a long way off anywhere near our best footy and it was kind of across the board and I probably didn't see it coming."