Several NRL coaches have expressed concern over fielding their best players at the Auckland Nines because the competition is perceived "high risk".
A host of teams are refusing to take their stars to the Nines due to the fear of injury.
As a result, Manly and the Wests Tigers have both named weakened teams for next month's assault on the Nines.
More teams, including Canberra, are expected to follow suit in the coming days.
Under the Auckland Nines' rules, all clubs must send 12 of its top 25 players and one from their top five. However, coaches are reluctant to field their best players as the fast-paced nature of a congested Nines schedule increases the prospect of injury.