LEXINGTON, Ky. - Kentucky sophomore Doron Lamb has stepped up his dedication heading into his sophomore season. Lamb says he made a promise to his father following his freshman year that he would be the first to practice and the last to leave. His head coach John Calipari can confirm, saying that was not the case last season but it has been so far this preseason. Calipari adds that Lamb is way beyond his toughness and physical play from a year ago. And Calipari says Lamb's concentration is better as well.