GEELONG defender Tom Stewart has received positive news ahead of Friday night's preliminary final against Adelaide after scans revealed no serious damage to his left hamstring. 

The 24-year-old experienced gradual hamstring tightness in the 59-point semi-final win over Sydney on Friday night and sat out the entire final quarter. 

Stewart first went off the ground after using his burst of speed on the wing in an attempt to spoil a marking contest just before the halfway point of the third term. 

The first-year defender returned later in the quarter, only to pull up tight again after spoiling Swan Callum Sinclair's attempted mark near the boundary. 

Geelong released a statement on Sunday afternoon saying Stewart would face a fitness test in the lead-up to the clash with the Crows. 

"I'm pretty confident in my body," Stewart told reporters on Saturday when he had scans. 

"It was more precautionary from the medical staff in the context of the game. 

"When I did it late in the third quarter, they just said there's no real point going out there and doing any more damage." 

Stewart drew high praise in the second quarter for his repeated runs from defence, which culminated in a team-lifting tackle on Swan Luke Parker. 

Retiring Cats defender Tom Lonergan was a late withdrawal against the Swans due to food poisoning, but is a certainty to return against Adelaide.

He was still recovering at home on Sunday but is expected to train on Monday and make himself available for selection.

Midfielder Cameron Guthrie (calf) is racing the clock to be ready, while speedster Nakia Cockatoo (hamstring) is another Cat hoping to be in the selection mix.