GREATER Western Sydney veteran Heath Shaw will be ruled out for the rest of the season with a medial ligament knee injury, his uncle and media commentator Tony Shaw says.

Shaw suffered the injury against Adelaide in the teams' clash in Canberra on Saturday night when teammate Adam Kennedy fell across his left leg.

Tony Shaw said the 32-year-old would not be able to get back for the Giants' upcoming finals campaign.

"Heath will be out for three months. He has torn his medial," Shaw told Macquarie Sports Radio.

"It isn't an ACL, which is great, but it'll be three to four months recovery."

Heath Shaw injured his knee in the fourth quarter.#AFLGiantsCrows pic.twitter.com/swqXX6C0tz — AFL (@AFL) August 11, 2018

Shaw is contracted for next season and has finished the season off strongly, averaging 22.3 disposals and 7.3 rebound 50s per game.

The Giants also lost Josh Kelly (concussion) and Sam Reid (hamstring) to injury against the Crows, with the club waiting to see how the pair have pulled up from the weekend.