The Czech Repulic participated in the 2010 Winter Olympics and had, as its flag bearer, a former NHL player who played in what league after leaving the Rangers?
Czech Republic at the 2010 Winter Olympics: The Czech Republic participated in the 2010 Winter Olympics in Vancouver, British Columbia, Canada, sending 92 participants, the largest Czech team ever to appear at the Winter Olympics. Czech Republic at the 2010 Winter Olympics:  Hockey player Jaromír Jágr served as flag bearer at the opening ceremony. Jaromír Jágr:  He has formerly played in the NHL with the Pittsburgh Penguins, Washington Capitals, New York Rangers, Philadelphia Flyers, Dallas Stars, Boston Bruins, New Jersey Devils and Florida Panthers, serving as captain of the Penguins and the Rangers. Jaromír Jágr:  After leaving the Rangers, he played for three seasons in the Kontinental Hockey League (KHL) with Avangard Omsk before returning to the NHL with the Flyers.
Kontinental Hockey League