CHRIS Scott has conceded Geelong medicos made a line-ball decision to clear gun forward Jeremy Cameron from a pre-game fitness test on his hamstring before he was subbed out of Friday night's win over Essendon. 

Cameron booted three of the Cats' first four goals in their 41-point victory before he was taken out of the game in the second term with his third right hamstring injury of the year. 

Scott admitted the 2019 Coleman medallist had hamstring tightness pre-match before copping a cork to the glute and further tightness before half-time. 

"Iffy's probably a good description of how it was pre-game," the Cats coach said post-match.

"I think more than people realise, there are really hard decisions that need to be made by the medical staff and he had a bit of tightness there pre-game but they were confident the right decision was made for him to play. 

"I'd like to defend our medical staff as much as possible because they've done a fantastic job for us this year and this was one of those really challenging decisions.

"They've got really difficult decisions to make, they don't need to defer to a coach who's got no idea what he's talking about.

"He got a little bit of a cork up near his glute … his tightness was right down low in the hamstring. The medical staff are confident that he hasn't done a significant injury, but it was just not getting better.

"You're not looking at a significant injury. He's the best player of all time if he's got a significant injury and was doing what he's doing."

Cameron injured his right hamstring at training in January before he was withdrawn from the Cats' season-opener with a further setback and made to wait until round six for his club debut.