Blaine Hansen Scully is an American former rugby union player who played for the U.S. national team as a fullback or wing. Scully was captain of the U.S. national team and previously served as co-captain alongside long-serving USA Eagle, Todd Clever. Professionally, Scully last played in Wales for Cardiff Blues and for the Leicester Tigers. Scully also founded the United States Rugby Players Association (USRPA) with former 7s Eagle, James Gillenwater.

The United States men's national rugby union team, nicknamed the Eagles, represents the United States of America Rugby Football Union in men's international rugby union. USA Rugby is the national governing body for the sport of rugby union in the United States, and is a member of Rugby Americas North, one of six regional governing bodies under World Rugby. Until rugby returned to Olympic competition, with sevens at the 2016 Rio Games, the United States was the reigning Olympic rugby champion, having defeated the one other competitor in 1920 and the two other competitors at the 1924 Summer Olympics.