Hall of Fame officials had not planned on asking for anything from Stephen Strasburg's debut, according to Adam Kilgore of Nationals Journal. However, the rookie phenom's historic performance gave them little choice, and the Nationals obliged by their request:

As Stephen Strasburg taped an apperance on "Late Show with David Letterman," the Nationals and Strasburg announced today they will donate his game-worn cap and a game ball to the National Baseball Hall of Fame and Museum.

Read this for more information on baseballs and Strasburg's appearance on the "Late Show with David Letterman."