After WCW was sold in 2001, Diamond Dallas Page signed with the WWF where he made his pay-per-view debut in the main event of July's Invasion show, and went on to become a one-time WWF European Champion and one-time WWF World Tag Team Champion.
Due to a series of injuries, he allowed his contract with the company to expire in 2002. He worked for TNA from 2004 to 2005, challenging for the NWA World Heavyweight Championship in the main event of Destination X 2005. Page makes recurring roles in All Elite Wrestling.
On May 25, 2019, during their inaugural pay-per-view Double or Nothing, Page escorted Brandi Rhodes away from the ring after she refused to leave the match between Cody Rhodes and Dustin Rhodes after match referee Earl Hebner ejected her from the match.
On the October 23, 2019 episode of Dynamite, Page helped Cody attack Chris Jericho and his stable The Inner Circle. During a recent interview with Sportskeeda, DDP speaks about Cody Rhodes: “To me, I believe in what Cody is doing, I will do anything he wants.
I’m super proud of him. I think he’s done an unbelievable job. You can’t watch enough wrestling, I guess. What they are offering is just different. It’s going to be a fun ride to watch, that’s all I know”.