Denver Post fileColorado guard Xavier Silas, front, celebrates after making a shot as guard Richard Roby helps up Silas against Nebraska in the second half of Colorado’s 55-51 victory in Boulder on Tuesday, Jan. 15, 2008. The Denver Nuggets added a familiar face to their training camp roster, according to ESPN’s Adrian Wojnarowski. Former Colorado Buffs guard Xavier Silas agreed to a training camp deal with Denver, Wojnarowski reported on Twitter. The 6-foot-5 shooting guard has played a total of four NBA games in seven professional seasons, most recently on a 10-day contract with the Boston Celtics last season.