SEATTLE -- Members of the Dallas Cowboys will participate in a home run derby Wednesday at the Ballpark in Arlington to raise money for Big Brothers Big Sisters organization. Former Cowboys quarterback Troy Aikman will emcee the event, which will be attended by members of the Big Brothers Big Sisters organization. It is not open to the public. Reliant will sponsor the event and donate $500 for each home run. Eleven bull's-eye targets will be set up for players to hit and earn additional bonus donation money. Head coach Jason Garrett will participate along with Miles Austin, Jason Witten, DeMarco Murray, Dez Bryant, John Phillips, Doug Free, Sean Lee and Kevin Ogletree. Former Rangers pitcher Tim Crabtree will pitch.