The Pittsburgh Penguins have officially released defenseman Nikolai Knyzhov from his professional tryout contract. The 26-year-old, who previously played for the San Jose Sharks, did not participate in any preseason games.

The Penguins face a crowded training camp roster, particularly on defense, with several players vying for limited spots. Key defensemen like Erik Karlsson and Kris Letang are expected to secure their places, while Knyzhov's competition includes Jack St. Ivany and Ryan Shea.