Penrith have signed State of Origin winger Brian To’o to a four-year contract extension in a significant step towards securing the long-term future of their premiership winners.

To’o’s previous contract was set to expire at the end of next year and since November 1, the dual-grand final winner had been free to negotiate with rivals for 2024.

After retaining To’o through 2027, Penrith will shift their attention to fellow premiership winners Stephen Crichton, Scott Sorensen, Jaeman Salmon and Spencer Leniu, who are all without deals beyond 2023.