The Ultimate Fighter

The fighters arrive in Las Vegas to begin the training and evaluations prior to the teams being picked.

A heavyweight struggles with his conditioning; a gym mishap lands a fighter in the dentist chair; and two fighters go head to head in the first female featherweight matchup. Robert Whittaker and Kelvin Gastelum serve as coaches.

It's a house divided, as a rift emerges between the American and foreign fighters. A fighter gets help from his entire team during a difficult weight cut. And two more heavyweights face off in the third preliminary fight.

Kelvin Gastelum gets a welcome surprise from one of his longtime coaches; a featherweight struggles to mesh with her team; and two women's featherweights battle for a spot in the semifinals. Gastelum and Robert Whittaker serve as coaches.

A featherweight edges closer to switching teams; Kelvin invites his TUF 17 final opponent to join his coaching staff. Then, the third featherweight preliminary fight determines the next semifinalist.

The last featherweight preliminary bout is held. Also: Maurice Greene's excessive drinking becomes a problem at the house; and Dana White announces the semifinal matchups. Middleweights Robert Whittaker and Kelvin Gastelum serve as coaches.

Maurice's drunken tirade causes tension between the teams, and tempts one fighter to quit the competition. The semifinals kick off as two heavyweights enter the Octagon, with a spot in the finale at stake. Robert Whittaker and Kelvin Gastelum coach.

The semifinals continue in the Octagon, with a spot in the finale at stake. Robert Whittaker and Kelvin Gastelum serve as coaches.

The semifinals continue in the Octagon, with a spot in the finale at stake. Robert Whittaker and Kelvin Gastelum serve as coaches.