WWE-UFC merging with Vince McMahon staying aboard / Fire breaks out on The Rings of Power set / Abbott adds Taraji P. Henson

PLUS: Paramount Network is "very confident" Kevin Costner will return to Yellowstone — as Taylor Sheridan and Costner were no-shows at Paleyfest.

WWE and UFC are merging, with Vince McMahon staying aboard
Endeavor Group Holdings, owner of UFC, and WWE announced Monday they are forming a new publicly listed company consisting of the two “iconic,…