The Ultimate Fighter - Season 23

The fighters move into the TUF house. As training starts, the animosity between coaches takes center stage while two fighters struggle with injury and illness.

Helen Harper is distraught after getting injured in practice; Cory and Khalil have a donut-eating contest at the house; Dana White rewards the fighters with a night of video gaming; and two strawweights face off for the first time this season.

Joanna lashes out at her team for a perceived lack of effort during training; and a Red Team rallying cry rubs Team Claudia the wrong way. Then, a classic striker vs. grappler clash determines a semifinal spot.

A bombshell is dropped as Joanna and Claudia compete in the biggest coaches challenge in "Ultimate Fighter" history. Then, in the first light-heavyweight semifinal, two friends battle it out for a spot in the finale.

Miesha Tate pays a surprise visit to a Team Claudia practice. Meanwhile, one of the semifinalists struggles with a difficult weight cut, putting her fight future in jeopardy. Then, two strawweights face off with a spot in the finale on the line.