Alberto Del Rio wasn't booked for the show, but still, WWE couldn't keep him off TV and gave him some time in this PPV.
He just went over to remind us who he is and that he'll be the next WWE Champion regardless of who wins later. He talked about immigration problems. But he said that they are available in Seattle due to "sneaky Canadians" crossing the border to USA. He received loud boos for this.
No need to tell you about the rest of his promo because "you already know" what he always says.
In the end, he was interrupted by Kane and Big Show who came in for their match. Kane said that he's already angry because the rapture didn't come yesterday. He then told Alberto that if he doesn't leave the ring his destiny is to wind up just like MicGillicutty and Otunga did backstage earlier.
Anyway, many people might think that this was a random promo, and I agree. But still, it showed that WWE cares for Del Rio and cannot think of leaving him off TV.
Do you think he'll be the next challenger for Cena's title? Only time will tell.
I wrote a preview article prior to the show on the possible roles of superstars who weren't booked for the card. Del Rio was among those superstars, and he was the only one to make an appearance. You can find the article here.