PITTSBURGH -- When you're on top, everyone is gunning for you. This is exactly the position WWE Champion Triple H finds himself in.

The Game had to fend off United States Champion Shelton Benjamin in a Champion vs. Champion bout. The King of Kings was successful, using a Pedigree to down the Gold Standard. But after the bell, Benjamin stunned Triple H by hitting him from behind with his United States title. To add insult to injury, The Great Khali came to the ring and chokeslammed the vulnerable champion. (WATCH)

As an unprecedented five-man WWE Championship Scramble looms at Unforgiven, the reigning champion will continue to have to watch his back. Unforgiven preview …

Nowhere to hide
Since returning from banishment and sending Edge to hell at SummerSlam, Undertaker has been very clear about how he feels about SmackDown General Manager Vickie Guerrero.

"I'm not the forgiving kind," he said at the beginning of SmackDown in a rare ring appearance on the mic. With Vickie, Chavo Guerrero, Bam Neely, and WWE Tag Team Champions Curt Hawkins & Zack Ryder watching from a monitor in Vickie's office, The Deadman delivered an ominous warning. "I will be coming for you. And, I will be coming for your soul. And once I take it, you will burn. Burn in hell," he bellowed.

Watch Undertaker's grim warning in SmackDown's Quick Cut

SummerSlam Rematch
After losing to Montel Vontavious Porter at SummerSlam, Jeff Hardy had an opportunity to settle the score in a rematch on SmackDown. From the start, Hardy came at MVP with an aggressive offense. But as the battle wore on, MVP launched his own assault, resulting in a series of near pinfalls. But each time, Hardy found a way to survive.

In the end, the high-flyer dug deep and summoned the energy to deliver a Whisper in the Wind and Swanton Bomb to finish off SmackDown's Franchise Playa. After the bell, United States Champion Shelton Benjamin came to the ring to offer his version of a congratulations. (WATCH)

Jilted giant
Before a winner could be determined in the tag team match pitting Jesse & Festus against WWE Tag Team Champions Curt Hawkins & Zack Ryder, Big Show interrupted to deliver a message. Unfortunately for Festus and the tag team champions, they ended up strewn about the ring after the angry giant took out his frustrations on them. The source of his anger? Not being included in last week's series of WWE Championship Scramble Qualifying Matches on SmackDown.

"I will never, ever, be overlooked again," he said. In a sarcastic apology to Guerrero for disrupting the match, The World's Largest Athlete said, "Let's just call it an oversight."

Impressive debut
After enduring some harsh trash talking from Kenny Dykstra before the bell, R-Truth let his actions do the talking throughout their match. Using an impressive corkscrew flying elbow, followed up by a scissors kick, the SmackDown newcomer picked up a debut victory. (WATCH)

Beautiful start
Also making an impressive debut was Brie Bella. Using an inside cradle, SmackDown's newest Diva was able to stun Victoria and get the pinfall.

Blonde brawl
In other Diva action, Maryse & Natalya picked up a win over Divas Champion Michelle McCool & Maria. Using a hard-hitting DDT, Maryse got the pinfall over Maria. But after the bell, Maryse attacked McCool and the two engaged in an all-out brawl that spilled from the ring onto the arena floor. Natalya got involved, holding the All-American Girl so that Maryse could get in a cheap shot. The blow left McCool lifeless on the arena floor, as the victors strutted their stuff on the way out of the arena.