On Blue Bloods, Wendy Moniz is out and Andrea Roth is in.

For reasons CBS has not explained, Moniz has been replaced on this upcoming drama as the girlfriend of Tom Selleck's character. Roth, best known for her long-running role on Rescue Me, will take over and re-shoot all scenes in the pilot episode that had featured Moniz.

Blue Bloods premieres on September 24. It tells the story of a New York City police family and you can watch an extended trailer for it NOW.

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.