The trade was announced after Chicago's 5-4 shootout win over Phoenix on Thursday night.
The 27-year-old Versteeg, a member of the Blackhawks' 2010 Stanley Cup championship team, has two goals and five assists in 18 games this season with Florida.
Versteeg had 20 goals and 24 assists in 79 regular-season games with the Blackhawks in 2009-10, then added six goals and eight assists in 22 playoff games during the team's run to the Stanley Cup. He had a career-high 22 goals and 53 points with Chicago in 2008-09.
You forget how good [Nieuwendyk] was. You hear the points and stuff and you almost forget until they kind of walk you through his career, and that was really cool for me. I might have felt it a little more than some of the other guys because he was one of my favorites growing up, but that was very cool and I'm honored to have been a part of it. I had chills the entire ceremony.
— Calgary's Joe Colborne on the "Forever a Flame" ceremony for Joe Nieuwendyk