In his newly created Instagram account, Brady highlights a notable passage from a classic bestseller, surprisingly, about tennis. W. Timothy Gallwey’s The Inner Game of Tennis: The Classic Side to the Mental Guide of Peak Performance was a phenomenon when it was published in 1972, mainly for its revolutionary take on overcoming the self-doubt, nervousness, and lapses of concentration that can keep a player from winning. As Gallwey wrote, “Every game is composed of two parts, an outer game and an inner game.” The former is played against opponents, and is filled with lots of contradictory advice; the latter is played within the mind of the player, and its principal obstacles are self-doubt and anxiety.