Merrill Parks and Recreation is holding a summer tennis league at Merrill High School. Current participants range in age from 18-60, but according to league organizer Janet Thompson; any adult 18 or older is welcome to join at no cost, at any time. Games are played on Monday and Wednesday afternoons. May through July is singles competition and August and September is doubles. If the weather cooperates in October there will be a round robin tournament. To sign up contact the Merrill Parks and Recreation office at 715-536-7313.