Randy Orton was attacked backstage by Drew McIntyre a few weeks ago on Raw and has since been questionable for Clash of Champions.
The decision was made last week that if The Viper is unable to challenge for the WWE Championship then Keith Lee would take his place if he was able to defeat the WWE Champion on Raw.
Last week, their match was interrupted by RETRIBUTION so the company allowed the two men to face off again this week, and just as a winner was about to be crowned, Randy Orton made his return.
The Viper attacked the WWE Champion with a steel chair, placing it into his fractured jaw before delivering a Punk Kick to Keith Lee.
Orton then cut a promo where he accepted the challenge of an Ambulance match at Clash of Champions and made it clear that he remembers what it takes to become WWE Champion.