MOUNT BARKER, AUSTRALIA - FEBRUARY 28: Sam Shaw of the Crows misses the spoil on a mark taken by Matt Taberner of the Dockers during the 2016 NAB Challenge match between Fremantle Dockers and the Adelaide Crows at Sounness Park, Mount Barker on February 28, 2016. (Photo by Daniel Carson/AFL Media/Getty Images)

Adelaide defender retires due to ongoing concussion symptoms

Adelaide defender Sam Shaw has been forced into retirement due to ongoing concussion symptoms, according to the Adelaide Advertiser.

The 25-year-old played 24 games for the Crows after being recruited with pick 45 in the 2009 National Draft.

Shaw did not play a senior game in 2016, after suffering a head knock against Woodville-West Torrens in the SANFL in April this year.

He was sidelined for four months, before returning to the SANFL in Round 18. However, following the match he suffered more concussion related symptoms and subsequently ruled out for the rest of the season.

Shaw is reportedly stillĀ battles lethargy and fatigue during and after strenuous exercise.