In Major League Baseball (MLB), the 40–40 club is the group of batters, currently six, who have collected 40 home runs and 40 stolen bases in a single season. Few professional baseball players have possessed both the power and speed to reach this level, and no players have done so more than once. The six players with a 40–40 season are Jose Canseco, Barry Bonds, Alex Rodriguez, Alfonso Soriano, Ronald Acuña Jr., and Shohei Ohtani. Acuña is the only player to achieve a 40-70 season, achieving this feat in 2023, and Ohtani is the only player to achieve a 50–50 season, having done so in 2024.