Ahead of Thursday's Live Announcement of Open Workout 16.4, Pat Sherwood catches up with the 2015 Fittest Woman on Earth, Katrin Davidsdottir, via Skype. Immediately following the workout announcement, Davidsdottir will go head to head with last year's bronze medalist, Sara Sigmundsdottir. Tune in for the Pre-Show at 4:45 p.m. PT, and the announcement at 5 p.m. PT, at games.crossfit.com.