The Celtics have signed 25-year old power forward Shelden Williams to a 1-year deal. Williams has not reached his potential yet as he was a high first round pick 3 years ago of the Atlanta Hawks. Williams played in 45 games (0 starts) last season for the T-Wolves and Kings in which he averaged 11.4 minutes, 4.1 points, 3.4 rebounds and 0.3 assists per game. He has now played in 190 games (31 starts) in his three year NBA career and he has averaged 14.7 minutes, 4.7 points, 4.2 rebounds and 0.4 assists per game. The Celtics will be happy with Williams if he just gives them some rebounding and defense off the bench.