Manly want Kiwi hitman Martin Taupau to tackle his shoulder charge issues to ensure he stays on the field this NRL season.
Taupau, along with fellow forward Addin Fonua-Blake, will miss the team's next two matches for no-arms hits in their round-one defeat to Parramatta last week.
Sea Eagles coach Trent Barrett questioned why the shoulder charges were punished more harshly than the $1500 fine for punches, but still told his suspended duo to curb their aggressive instincts.
"You can't shoulder charge. That's something that Marty and Addin have got to address in their games because they're too important for us to miss," Barrett said.
"Marty's one, there was a fair bit of contact there, but Addin's one was he just lent into him more or less. And you don't get one for a punch. It is a bit of a grey area I suppose."