Before Kentucky games, an assistant trainer offers well-intended words of encouragement to DeAndre Liggins. “He always tells me to score 20 points,” Liggins said on Sunday. “I tell him, it’s not about that. If I score two points and we win, I’m happy because I know I did my job. He’s, like, ‘You’re right, ‘Dre.’ ” Being a defensive stopper does not mean rose petals at your feet and the sound of hosannas in your ears. Such recognition is reserved for basketball’s offensive stars.