The courts are currently open. Tennis is specifically identified as currently being a sport that is ok to play. You must wash your hands before and after playing, don’t shake hands and keep your distance. Buy a tin of tennis balls for you and your opponent, don’t use balls from the clubhouse unless you wear a disposable glove on your non dominant hand.
Be safe and enjoy your tennis. For more info check the Lawn Tennis Association website. As we're sure you are aware, this is a rapidly evolving situation, so please keep up to date and follow current Scottish Government guidelines and NHS advice.