One of the biggest events of the year for the WWE emanates live from the Barclays Center in Brooklyn on Aug. 23 and with just four weeks until the event, much of the card remains up in the air.

The only match announced so far is The Beast vs. The Deadman as Brock Lesnar and The Undertaker are set to go toe-to-toe in a WrestleMania XXX rematch as the Demon from Death Valley faces the man who ended The Streak once again.

As for the rest of the card, at this point the WWE hasn't announced anything, though plenty of rumors have been swirling around.

The WWE has seemingly been building toward a clash between Rusev and Dolph Ziggler at the event while they have also teased an altercation between the reunited Wyatt Family and former Shield stablemates Roman Reigns and Dean Ambrose. There is also some speculation that Sting will get involved as well.

There is certain to be some sort of Divas match at the event as well considering the three new trios are going head-to-head and there is also sure to be an Intercontinental Championship and Tag Team Championship bout at the event.

There were rumors that Seth Rollins would face Triple H, but after last week it seems as though the WWE World Heavyweight Champion will face the United States Champion John Cena.

Here is our updated card for SummerSlam in four weeks at the Barclays Center in Brooklyn.

Title for Title: WWE World Heavyweight Championship vs. United States Championship
Seth Rollins (WWE champ) vs. John Cena (U.S. Champ)

The Deadman vs. The Beast
The Undertaker vs. Brock Lesnar w/ Paul Heyman

Six-Man Tag Team Match:
Roman Reigns, Dean Ambrose & Sting vs. The Wyatt Family (Bray Wyatt, Luke Harper & TBD)

WWE Intercontinental Championship
Ryback (c) vs. Kevin Owens

WWE Tag Team Championships Turmoil Match
The Prime Time Players (Titus O'Neil & Darren Young) (c) vs. The New Day (Kofi Kingston, Big E and/or Xavier Woods) vs. Los Matadores (Fernando & Diego) vs. The Ascension (Konnor & Viktor) vs. The Lucha Dragons (Sin Cara & Kalisto) vs. TBD

No Holds Barred
Randy Orton vs. Sheamus

Singles Match
Rusev w/ Summer Rae vs. Dolph Ziggler w/ Lana

3-Way Divas Tag Team Match
The Bella Twins & Alicia Fox vs. Paige, Charlotte & Becky Lynch vs. Naomi, Tamina Snuka & Sasha Banks