[1][2] Following an October 2004 ACL tear and faced with the likelihood of not making the U.S. Worlds team for 2005, Church decided to switch to competing for Great Britain while continuing to live and train in the U.S.[2] She made her major international debut at the 2005 World Championships in Melbourne.

[3] Due to an injury to captain and world bronze medallist Beth Tweddle, the team had to compete with only four members, and were unable to challenge Australia for the gold medal.

In the all-around, Church was in medal contention until her beam routine, where a narrow save after a large wobble was not enough to prevent her from dropping behind, and she finished fifth.

As a member of the University of California, Los Angeles women's gymnastics team, Church's competition debut was delayed after arthroscopic surgery on her right knee.

[4] In July 2008, Church announced her retirement from gymnastics and began a coaching career in California.