A 20-by-40-foot strip of turf is all that’s missing from the Clover Memorial Stadium field at the moment. By January it will be one of the few reminders of the facility’s playing surface. The other is a national award that the group who maintain the field recently won. Will Rogers and a devoted crew of Clover School District employees were awarded the prize of top football field in the schools and parks division by the Sports Turf Managers Association. “It’s a big deal,” said Rogers. “We may not ever win it again, so we want to enjoy it while we’re a national field.” The timing of the award is ironic. In several weeks, the bermudagrass at Clover Memorial Stadium will be clawed up and replaced with synthetic turf, part of a bond referendum that voters passed last March.