A bitter family feud involving Kieren Jack and his father Garry - a rugby league great - has gone public in the week of the Swans' co-captain's 200th game, with Kieren requesting his parents not attend his milestone match this Friday night in Geelong.

It's understood that Jack and brother Brandon, himself a Swans player, have fallen out with parents Donna and Garry, the latter of whom is a league hero in Sydney.

The row erupted on Monday when Donna tweeted directly to Kieren, claiming that Kieren did not want his parents to attend Friday night's clash with the Cats at Simonds Stadium, but has been simmering for more than a year.

It has also emerged that Brandon, 22, a fringe player at the Swans, recently requested Garry leave the Sydney reserves' change rooms after the former Balmain champion appeared there on the day of a NEAFL game.

Read more at SMH.com.au