fPittsburgh Penguins center Matt Cullen has decided to retire after 21 seasons in the NHL. The 42-year old made the announcement Wednesday. Cullen scored 266 goals in 1,516 career games. He played 71 games last season for the Penguins and compiled 20 points. Cullen played for eight NHL teams, including two stints with the Penguins. He won three Stanley Cups in his career, two with the Penguins and one with Carolina.