In January 2003, he was drafted by the Dallas Burn 52nd overall in the 2003 MLS SuperDraft of Major League Soccer. Released in September 2003, Rosenband signed with the Charleston Battery and later that season played for the Milwaukee Wave United both of the USL First Division. In 2004, Rosenband was signed by the Chicago Storm of the Major Indoor Soccer League. In the Storm's inaugural season, he played in 37 games scoring 12 goals and seven assists for 19 points and blocked 13 shots. At the end of the 2004–05 season, Chicago lost the rights to Rosenband to the California Cougars in the MISL expansion draft. In 2005, he played for the Chicago Fire Reserves of the MLS scoring two goals in five games and was signed by the Chicago Fire for the remainder of the 2005 season. Later in 2005, the Chicago Storm re-acquired Rosenband in a trade with the California Cougars that sent John Ball and the rights to Kevin Sakuda to California for target man Anthony Maher and the rights to Rosenband. He re-signed with the Storm on March 14, 2006, and played eight games scoring two goals and one assist. Following the conclusion of the season, Rosenband signed a contract extension through the 2008–09 season. During the Storm's 2006–07 season, Rosenband reached a career high in points and tied for second in the league in shorthanded goals. He played in 29 games scoring 11 goals and 6 assists helping the team to its first post-season win in franchise history. After the 2007 season, Rosenband was selected to the USA Futsal team for matches held in South America. He was named as an alternate for Futsal Team USA during the 2007 Pan-American Games. In 2008, Rosenband was selected as member of the USA National Futsal Team, and qualified for the 2008 FIFA Futsal World Cup held in Brazil. Rosenband scored the opening goal against Italy. In 2009, Rosenband was selected to the US National Maccabi team and named captain for the Maccabi Games. Rosenband scored three goals in international play. Following the Maccabi Games, Rosenband retired from professional soccer.
Post-retirement
In 2009, Rosenband founded Morgan Li, a retail store fixture and hospitality furniture manufacturer in Chicago Heights, Illinois, that was named to Chicago Crain's Business Fast 50 in 2018 and 2019. In 2019, Rosenband was named to Crain's Chicago Business40 under 40. Rosenband also serves on the board of the Illinois Action for Children.