The event is meant to celebrate the life and community-service legacy of Clemente, the Pirates' Hall of Fame right fielder.
Before the game on Sept. 19, Pirates Charities will host exhibits on Federal Street (along PNC Park's left-field wall), where fans can obtain information about important community programs and services.
Among the many non-profit groups participating are Big Brothers Big Sisters of Greater Pittsburgh, Gilda's Club Western Pennsylvania, The Josh Gibson Foundation, Life's World of Western Pa., Make-A-Wish Foundation of Greater Pa. and Southern West Virginia.
In addition to learning about these groups, fans can enter a Pirates Charities prize raffle, donate food to the Greater Pittsburgh Community Food Bank, and give new and used baseball equipment to Roberto's Kids, a non-profit whose mission is to provide equipment to youth in Latin America.
Fans willing to give monetary donations may do so at any entrance to PNC Park in support of Pirates Charities.
In addition, a silent auction will take place inside the ballpark. The auction, which will feature assorted Pirates and Major League Baseball autographed and game-used memorabilia, will be held in Section 101.
Despite Friday's postponement, the Pirates were expected to recognize a number of players for their work in the community.
Shortstop Jack Wilson was given the Pirates' 2008 Roberto Clemente Award, awarded to a member of the team who combines outstanding skills on the field and devoted work in the community.
The Pirates also named one player from each of their Minor League affiliates as the recipients of the organization's first Pirates Community Commitment Program awards.
Neil Walker (Triple-A Indianapolis), Brad Corley (Double-A Altoona), Jared Keel (Class A Lynchburg), Austin McClune (Class A Hickory), Josue Peley (short-season State College) and Jean Garavito (Rookie League Gulf Coast League Pirates) were the six players honored.
This award was created this season to encourage Pirates Minor Leaguers to emulate Clemente's legacy. Each recipient, who was required to log at least 10 hours of volunteer work during the season, will travel to Pittsburgh to receive his award during the pregame ceremony on Sept. 19.
Todd Krise is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.