Forrest Griffin and Matt Parrino break down the changes in the rankings, including Holly Holm's move up at 135 pounds to No. 2. Plus, a look ahead to the huge lightweight showdown Sunday between Michael Chiesa and Kevin Lee in OKC.

Holly Holm talks backstage after defeating Bethe Correia at Fight Night Singapore.

Holly Holm talks in the Octagon after defeating Bethe Correia at Fight Night Singapore.

Watch Marcin Tybura in the Octagon after his win at Fight Night Singapore.

Colby Covington reacts in the Octagon after his win at Fight Night Singapore.

Watch Rafael Dos Anjos talk backstage after his win over Tarec Saffiedine at Fight Night Singapore.

Rafael Dos Anjos reacts in the Octagon after winning in his debut at welterweight at Fight Night Singapore.

Check out the highlights from Friday's official Fight Night Singapore weigh-in, featuring main event fighters Holly Holm and Bethe Correia.

Former UFC women's bantamweight champion Holly Holm is determined to get back to her winning ways against Bethe Correia in Singapore on UFC FIGHT PASS.

Colby Covington took his fight with Dong Hyun Kim at Fight Night Singapore because he said nobody else wanted to fight him. He'll get to showcase his skills on UFC FIGHT PASS on Saturday.

UFC Minute host Lisa Foiles previews some potential Fight of the Night contenders at Fight Night Singapore.

UFC Minute host Lisa Foiles previews some under-the-radar fights to look out for at Fight Night Singapore.

Watch Dong Hyun Kim's Performance of the Night in 2014 when he defeated John Hathaway. Kim takes on Colby Covington at Fight Night Singapore on June 17.

Watch Bethe Correia earn her first UFC career knockout when she finished Shayna Baszler at UFC 177. Don't miss Correia in the main event at Fight Night Singapore against Holly Holm on June 17.

Watch Holly Holm defeat Marion Reneau in her second career UFC fight. Holm takes on Bethe Correia in the main event on Fight Night Singapore on June 17.