Boris Valabik, we never knew ye.

The 25-year-old defenseman the Bruins acquired as a throw-in in the Rich Peverley deal with Atlanta has signed with the Pittsburgh Penguins as an unrestricted free agent.

Valabik was scheduled to become a restricted free agent before the Bruins opted to not tender him a qualifying offer. According to the Pittsburgh Post-Gazette, Valabik’s new deal is a one-year, two-way contract.

After he was acquired from the Thrashers in the deal that sent Blake Wheeler and Mark Stuart to Atlanta, Valabik skated in just 10 games for the Bruins’ Providence (AHL) farm club. He recorded two assists and a minus-1 rating before a leg injury ended his season.