 Other wrestlers joined the roster, such as Jimmy Snuka, Don Muraco, The Iron Sheik, Nikolai Volkoff, Junkyard Dog, Paul Orndorff, Greg Valentine, and Ricky Steamboat.Many of the wrestlers who would later join the WWF were former AWA or NWA talent.The WWF would tour nationally in a venture that would require a huge capital investment, one that placed the WWF on the verge of financial collapse.