On this day: Celts win vs CLE in ’17 ECF, PHI in ’12 ECF; Watts born

On this day, the Boston Celtics beat both the Cavs and 76ers in East Finals series, and former Celtic forward Ron Watts was born.

On this date in 1992, former Boston forward Don Nelson was awarded the 1992 IBM NBA Coach of the Year, becoming the first coach in NBA history to win the honor three times.

Nelson’s Warriors recorded a 55-27 record, their second-best in the history of the franchise.

Nelson previously won Coach of the Year award with the Milwaukee Bucks in 1983 and 1985, his first stop as head coach after leaving the Celtics as a player.