 After WCW was bought by the World Wrestling Federation in March 2001, Booker T made his debut at the King of the Ring pay-per-view in 2001 attacking WWF Champion Stone Cold Steve Austin during his match, promptly injuring him in his very first move in the WWF.He later turned heel and became a leading member of The Alliance during the Invasion storyline.During July 2001, in his debut match in the company, Booker defended his WCW Championship against Buff Bagwell; sports journalist Michael Landsberg reported that many have called this bout "the worst match ever".