“As a group of players and coaches we have talked about it in depth and as a club we are completely against racism and all for equal opportunities,” McNamara told reporters.
“But some players and staff have made the decision not to take the knee.
“It was based on personal choice, they have their own reasons for doing it, and we decided that we would respect anyone’s personal choice in this matter.”
CNN reached out to Catalans Dragons for comment from Folau but had not received a response at the time of posting.
In addition to taking a knee, athletes wear t-shirts with anti-racist slogans as the sport has picked up in recent months.
He later explained that he didn’t think putting on a shirt and kneeling was “going hand in hand with supporting black life,” adding that the gospel can “bring us together.”
He signed a one-year contract with the Catalans in January and has since made four Super League appearances, including Sunday’s 34-6 loss to St Helens.
The Super League returned on Sunday after a four-and-a-half-month hiatus amid the coronavirus pandemic.