Matt Cullen retired from the NHL in July after 21 seasons, but he's decided to remain with the team for which he last played.

Cullen will join the Pittsburgh Penguins' hockey operations department in a player development role, general manager Jim Rutherford announced Thursday.

"Matt's knowledge of the game and understanding of our organization will make him a valuable asset moving forward," Rutherford said. "With over 20 years in the NHL and three Stanley Cups, we are certain he will continue to have a positive influence on our players."

Cullen played three seasons with the Penguins, winning championships in 2016 and 2017. He finished his career 19th all time with 1,516 games played, during which he registered 731 points.

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