Saturday afternoon at McKnight Park in Murfreesboro feels like the hub of youth baseball: Little league games are underway in every direction, with parents dishing out Capri Suns as kids run around in dirt-stained uniforms. While the park features 10 baseball diamonds, one field is a lot livelier than the rest. Players walk up to blaring music, an announcer calls out names and applause frequently erupts for the oft-hit home run. This is the Davi…