John Joseph Louis Johnson III is a former American professional ice hockey defenseman who played 19 seasons in the National Hockey League. Drafted third overall by the Carolina Hurricanes in the 2005 NHL entry draft, he played for seven franchises including the Los Angeles Kings, Columbus Blue Jackets, Pittsburgh Penguins, and Colorado Avalanche. Known as a two-way defenseman combining physical play with offensive capability, he captured the Stanley Cup with the Avalanche in 2022. He represented the United States internationally, earning a silver medal at the 2010 Winter Olympics in Vancouver. His career spanned from his 2007 NHL debut through the 2024-25 season before transitioning to scouting with the Vancouver Canucks in January 2026. This tag collects news, trade updates, game coverage, and career developments from his NHL tenure.