Pettersson signs, but just for a year

The Penguins finally have all of their players under contract.

Defenseman Marcus Pettersson, who had been a restricted free agent, has accepted a one-year contract with an average annual value of $874,125.

Both sides had been hoping to work out a longer-term deal, but the Penguins' lack of salary-cap space appeared to mitigate against that.

Pettersson, who was acquired from the Ducks for winger Daniel Sprong last December, was coming off an entry-level deal that had an average annual value of $894,125.

Pettersson, 23, had two goals and 23 assists in 84 games last season, including two goals and 17 assists in 57 games with the Penguins. He added one assist in four playoff games against the…