He missed the first game of the 2007 Stanley Cup playoffs against the Dallas Stars after he injured his back while picking up a cracker that was dropped by his daughter.

[12] On June 23, 2010, Sopel was traded to the Atlanta Thrashers, along with Dustin Byfuglien, Ben Eager and Akim Aliu, in exchange for the 24th (Kevin Hayes) and 54th overall picks (Justin Holl) in the 2010 NHL Entry Draft, Marty Reasoner, Joey Crabb and Jeremy Morin.

[13] After playing 59 games for Atlanta, registering two goals and seven points, Sopel was then traded to the Montreal Canadiens, along with Nigel Dawes, in exchange for Ben Maxwell and a fourth-round draft pick in 2011 on February 24, 2011.

[14] On July 29, 2011, Sopel announced that he had signed a two-year contract with Metallurg Novokuznetsk of the Kontinental Hockey League (KHL).

[16] On October 10, 2014, the Chicago Wolves of the American Hockey League (AHL) announced that they had signed Sopel to a standard player contract for the 2014–15 season.