In this week’s episode of UFC Rankings Report, Forrest Griffin and Matt Parrino break down the changes in the rankings. The big movement this week has Rafael Dos Anjos move into the top five of the welterweight division.

Watch Amanda Nunes backstage after successfully defending her belt against Valentina Shevchenko at UFC 215.

Watch Amanda Nunes celebrate in the Octagon after she defended her belt against Valentina Shevchenko at UFC 215.

Rafael Dos Anjos talks backstage after his victory over Neil Magny at UFC 215.

Watch Rafael Dos Anjos in the Octagon after his victory over Neil Magny in the co-main event at UFC 215.

Henry Cejudo talks in the Octagon after finishing Wilson Reis in Round 2 at UFC 215.

Jeremy Stephens talks backstage after his victory over Gilbert Melendez at UFC 215.

Mitch Clarke announced his retirement from the UFC after he lost to Alex White at UFC 215 on Saturday.

Watch the faceoffs from the UFC 215: Nunes vs Shevchenko 2 weigh-in in Edmonton, Canada. Order UFC 215 now at: www.ufc.com/ppv

Watch the official Media Day Face-Offs featuring the stars of UFC 215, live from Edmonton, Alberta, Canada, including Demetrious Johnson, Amanda Nunes, and more. Order UFC 215 now at: www.ufc.com/ppv

UFC 215 Embedded is an all-access, behind-the-scenes video blog leading up to the two title fights at UFC 215 taking place Saturday, September 9 on Pay-Per-View.

Ahead of his contest at UFC 215, we take a look back to Jeremy Stephens' thrilling KO of Rony "Jason" Mariano Bezerra at UFC Fight Night back in November 2013. Order UFC 215 now to watch him take on Gilbert Melendez.

Forrest Griffin and Matt Parrino are back for a preview edition of The Rankings Report. The two dive into the UFC 215 fight card and look ahead to Demetrious Johnson vs. Ray Borg, Amanda Nunes vs. Valentina Shevchenko and much more.

UFC Matchmakers Sean Shelby and Mick Maynard sit down with UFC commentator Jon Anik to discuss UFC 215, going down on Pay Per View Sept. 9 in Edmonton. They preview Demetrious Johnson vs. Ray Borg and more.

In advance of the two world title bouts, UFC will host a media conference call with all four athletes competing in the championship fights on Thursday, August 31 at 2 p.m. PT/5 p.m. ET.

Take a look back at Junior Dos Santos' finish against Gabriel Gonzaga during their bout in 2010. Don't miss Dos Santos take on Francis Ngannou at UFC 215.

Francis Ngannou introduced himself to the UFC with a KO punch in his UFC debut at Fight Night Orlando in 2015. Next, Ngannou Faces Junior Dos Santos at UFC 215 in a big heavyweight fight.