Markakis earned the Orioles' nomination due to his work with many charities in and around the Baltimore community, including Casey Cares, Rose Street Community Center, American Heart Association, Lungevity Foundation, Baltimore City and County Public Schools, Pathfinders for Autism, Baltimore Animal Rescue and Care Shelter, Orioles Charitable Foundation and Orioles Military Appreciation Program.
Each club nominates one player to be considered for the Clemente Award in an effort to pay tribute to Clemente's achievements and character by recognizing current players who truly understand the value of helping others.
Wednesday marks the 13th annual Roberto Clemente Day, which was established by Major League Baseball to honor Clemente's legacy and to officially recognize local club nominees and honor Clemente's legacy.
The 15-time Major League All-Star and Hall of Famer died in a plane crash on New Year's Eve 1972 while attempting to deliver supplies to earthquake victims in Nicaragua.
Beginning Wednesday, fans can vote for the award's national recipient at ChevyBaseball.com, which is powered by MLB Advanced Media. Voting ends on Oct. 6, and participating fans will be automatically registered for a chance to win a trip to next month's World Series. The winner of the fan vote will receive one vote among those cast by the selection panel of dignitaries, from which the honoree will be chosen.
Brittany Ghiroli is a reporter for MLB.com. Read her blog, Britt's Bird Watch, and follow her on Facebook and Twitter @britt_ghiroli. This story was not subject to the approval of Major League Baseball or its clubs.