"I have been so lucky to play the sport I love for the last 18 years," Sopel said in a statement. "I fulfilled a lifelong dream of winning a Stanley Cup championship with the 2010 Chicago Blackhawks.
"Today's decision is not made lightly. This is the right time for my next chapter. I look forward to staying involved with hockey while maintaining family roots in Chicago. I am excited to spend more time with my children in the city we call home."