The Nationals' closer, whose 25 saves are second most in baseball, was not named to the National League all-star team Monday.
Max Scherzer was named to his third all-star game, first in the National League.
The Nationals right fielder will not participate in the competition to be held next week at Great American Ballpark.
Harper was named to his third career all-star game when starting position players were unveiled Sunday. Full rosters will be announced Monday.
Escobar leads all NL third baseman is average and Storen is second in saves.
Giolito will make his second straight appearance and Turner gets his first.
Nationals' right fielder has received 9.2 million votes.
The Nationals' right fielder continues to lead all NL players in votes.
The Nationals right fielder leads all National League players in voting for the game, which is in Cincinnati in mid-July.
The Nationals outfielder leads all NL players with 1.116 million votes so far.