He is no name dropper, but we happen to know that tennis pro Mitch Gelina's client list includes many household names (You didn't hear it here, but he hits with Navratilova on a regular basis.) Mitch is highly recommended by RE parent Vivianne Swietelsky, who reports that he is great with kids and teaches many of her neighbors at L'Hermitage. A University of Hawaii grad, Mitchel returns to the Big Island each year to teach.