Justin Williams is known by most hockey fans as "Mr. Game 7" and Thursday, one of the most clutch players in NHL history officially called it a career.

Williams played 19 seasons in the NHL and won 3 Stanley Cups.  The reason he's known as "Mr. Game 7" is 7 goals and 8 assists in 9 career Game 7s.  Williams shared a statement and in it thanked a number of people that helped him achieve his dreams.

Following the news of his retirement, the hockey world took to Twitter to share kind messages and memories about Williams.

(H/T: Carolina Hurricanes)