Redfern Oval was placed into lockdown on Friday morning, with barricades erected around the ground and a security guard hired to keep the Bunnies away from prying eyes.

South Sydney's training base is a public facility, but Maguire has gone to the extra lengths of keeping their grand final preparations under wraps after the club ordered fencing around the iconic ground.

Security guards putting up plastic to obscure the view of Redfern Oval. Credit:ABC News

They've also called in a security guard to patrol the borders to ensure media crews or Bulldogs insiders don't catch a glimpse of their final training sessions.

While Canterbury have the luxury of training behind closed doors at their private Belmore facility, the Rabbitohs have always shared their facility with the community, which will be turned into a grand final live site for up to 5000 paying club members on Sunday.