The Boston Bruins traded their 3rd round pick in 2017 to the Philadelphia Flyers for Zac Rinaldo. In 58 games with the Flyers in 2014, Rinaldo logged a team leading 102 penalty minutes. Over the last four seasons, Rinaldo has put up 8 goals and 572 penalty minutes in 223 games. Rinaldo does come with some playoff experience, having played in 14 playoff contests with the Flyers.
The trade came as a shock to many, not only because of the high price of a third for a fourth liner, but the fact that it was Rinaldo in general.