Penrith forward Lewis Brown will leave the Panthers at the end of the season after signing a three-year deal with the Manly Sea Eagles.
"I am extremely happy for Lewis that he has secured his future with a great new deal at a great club like Manly. He thoroughly deserves it," Panthers rugby league general manager Phil Gould said in a statement.
"He has been wonderful for the Panthers. "Unfortunately salary cap rules dictate that we can't keep them all."