Bell was picked by NL all-star Manager Charlie Manuel of Philadelphia, who also had selected Gallardo.
Bell is 4-0 with 23 saves and a 1.72 earned run average this season. The 32-year-old right-hander also made the all-star squad last year.
The all-star game will be July 13 in Anaheim, Calif.
Copyright 2010 United Press International, Inc. (UPI)