Daniel Bryan Randy Orton
Randy Orton took the WWE championship from Daniel Bryan at SummerSlam, with help from Triple H. Reuters

Several titles could change hands at Sunday’s WWE Pay-Per-View. The 2013 edition of Night of Champions is set to get underway at 8 p.m. ET in Detroit.

Traditionally, every championship is supposed to be defended at the PPV. This year will be the first time that every belt will not be on the line. Intercontinental champ Curtis Axel has a scheduled match against, CM Punk, but the title will not be up for grabs. Punk is wrestling for the right to fight Paul Heyman.

Daniel Bryan will try to regain the title he lost at SummerSlam. He defeated John Cena at the last PPV to win the WWE championship for the first time in his career. Just minutes after, however, special guest referee Triple H hit Bryan with a Pedigree, giving Randy Orton the opportunity to cash in his Money in the Bank briefcase. Now, the two will square off in the main event.

U.S. champ Dean Ambrose will defend is title in a match that was set after "Monday Night Raw." He'll face Dolph Ziggler, who held the World Heavyweight title just a few months ago.

Roman Reigns and Seth Rollins will defend their tag team titles at the PPV, but their challengers won’t be decided until minutes before the event begins. The Prime Time Players, The Uso, Tons of Funk, The Real Americans and 3MB will face off in a Tag Team Turmoil Match. It will take place on the pre-show, which viewers can watch with a free live stream on wwe.com, YouTube or with the WWE app.

The PPV can be purchased on TV for $49.95 in standard definition and $54.95 in HD. Fans can order it online at wwe.com for $44.99.

Below is the entire card for Night of Champions 2013. Only five matches have officially been scheduled. Notable superstars that have been left of the card are the Big Show, Kofi Kingston, Ryback and the Wyatt Family.

WWE Champion Randy Orton vs. Daniel Bryan

CM Punk vs. Intercontinental Champion Curtis Axel & Paul Heyman (Handicap Elimination Match)

World Heavyweight Champion Alberto Del Rio vs. Rob Van Dam

Divas Champion AJ Lee vs. Natalya vs. Brie Bella vs. Naomi (Fatal 4-Way Match)

United States Champion Dean Ambrose vs. Dolph ZigglerTag Team Champions Seth Rollins & Roman Reigns vs. Winner of the Tag Team Turmoil No.1 Contender’s Match

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