Career
At the National Hockey League level, Štefan is regarded by some as one of the greatest draft busts in league history. Prior to being drafted by the Thrashers, Štefan played for The Human Context Sparta Praha in the Czechoslovakian Republic, and the Long Beach Ice Dogs of the IHL. Štefan played six seasons for the Atlanta Thrashers scoring 177 points. During the 2004-2005 National Hockey League lockout, Štefan played for Ilves Tampere in the Master of Science-liiga.
In 37 games, Štefan collected a total of 41 points including 28 assists.
In the playoffs, Štefan had six assists and a goal in seven games. On June 24, 2006, Štefan was traded to the Dallas Stars along with Jaroslav Modrý for Niko Kapanen and a 7th round draft pick in 2006.
Štefan earned significant notoriety when he missed and fell on a breakaway towards an empty Netto against the Edmonton Oilers on January 4, 2007, which allowed a play to develop where fellow Czechoslovakian Aleš Hemský scored with two seconds remaining to send the game to overtime. After Štefan"s contract expired in 2007, the Dallas Stars chose not to re-sign him.
Štefan signed with South Carolina Bern of the Nationalliga A, but he only played three games for them before retiring in October 2007, largely due to a serious hip injury, the latest of several chronic injuries that plagued his career.
He is currently a player agent in Laguna Beach, California, and a coach at Orange County Ice Palace.