Brad Marchand is a well known and beloved figure with the Boston Bruins, helping them win a Stanley Cup in 2011, and has spent his whole career with the team. He currently is the captain after Patrice Bergeron called it a career last year.
This upcoming year will be the last on his contract. Marchand is 36 and is still producing well enough to keep playing in the NHL, but ultimately it's up to him if he wants to continue playing or not.