Welcome back to our 30 for 30 documentary short series.

In this exclusive first-person account, Johnnie Ashe tells of a personal sacrifice he made to allow his brother Arthur to continue his budding tennis career. When Johnnie completed his first Vietnam War tour with the Marines, it raised the possibility that Arthur, a second lieutenant with the Army, would be deployed. Johnnie volunteered to serve in his brother's place so that Arthur could stay home and keep playing tennis. And the rest, of course, is history: Arthur would go on to win the inaugural U.S. Open in 1968 and enjoy a Hall of Fame career.

Previously:

• Wilt Chamberlain: Borscht Belt Bellhop, directed by Caroline Laskow and Ian Rosenberg »
• Tommy and Frank, directed by Richie Keen »
• Cutthroat, directed by Steven Cantor »
• Silver Reunion, directed by Rory Karpf »
• Holy Grail: The T206 Honus Wagner, directed by Nick and Colin Barnicle »
• Disdain the Mundane, directed by Nelson George »
• Ali: The Mission, directed by Amani Martin »
• The Arnold Palmer, directed by Bryan Gordon »
• Jake, directed by Jonathan Hock »
• Arnold's Blueprint, directed by Michael and Jeff Zimbalist »
• Here Now, directed by Eric Drath »