Odin Jones in action at Fremantle training. Picture: Fremantle Football Club

FREMANTLE rookie Odin Jones has undergone spinal surgery after fracturing a vertebrae in his spine in a "freak accident".

Jones, 19, fell awkwardly on Wednesday night, the Dockers said in a statement.

"This was a freak accident and Odin is now in the care of specialists following surgery this morning," Fremantle's executive general manager of football Joe Brierty said.

"He will spend a couple of weeks in hospital while we await advice on his recovery timeline.

"The thoughts of everyone at Fremantle are with Odin and his family at this time."

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Jones was selected with pick No.5 in last year's Telstra AFL Rookie Draft and recently signed a one-year contract extension.

The key-position player is yet to make his AFL debut.