Vinny Del Negro will be back as coach of the Los Angeles Clippers after guiding them to the highest winning percentage in franchise history during the lockout-shortened season. The team said Tuesday it has exercised its option on him to return for a third season. Del Negro led the Clippers to a 40-26 record, a winning percentage of 60.6 and the second round of the playoffs, where they were swept by the San Antonio Spurs.