Dirk Nowitzki is back, but Jason Kidd's strained right calf will keep the Dallas Mavericks from finally being whole again for at least another week. Nowitzki was in the starting lineup for Sunday night's showdown against the San Antonio Spurs after his eight-day personal training camp of sorts designed to strengthen his bothersome right knee. Kidd, who was hurt barely two minutes into Friday's 15-point win over the Utah Jazz, received relatively good news about his injury.