 Following the 2003–04 season, Kelly signed in Germany's Deutsche Eishockey Liga (DEL) with Adler Mannheim.In November 2005, Kelly signed with the Frankfurt Lions of the same league, where he scored 20 points in 22 games.In 2007, he signed with the Minnesota Wild and spent much of the season with the team's AHL affiliate, the Houston Aeros, before being called up at the end of the season to fill in at center.