Center for the Philadelphia 76ers (1975-1982)
Known for damaging backboards with his dunks.
Used to name his dunks. Some of his more memorable names: 'Yo Mama', 'Dunk You Very Much', 'Spine Chiller Supreme', 'Get Out of the Wayin', Backboard Swayin', Game Delayin', If You Ain't Groovin', You Best Get Movin'', 'Chocolate Thunder Flying, Glass Flying, Rump Roastin', Bun Toastin', Robinzine Crying, Glass Still Flying, Baby's Crying, Cat's Crying, Glass Breaker I Am Jam.'
Joined the NBA straight out of high school in 1977.
Second player in NBA history to break a backboard in an NBA game during play (Gus Johnson of the Baltimore Bullets was the first).
Patented the "Gorilla" dunk, where he would bring the ball behind his head with two hands, then throw the ball through the hoop with trmendous force.
Shattered a backboard on a dunk at Kansas City's Kemper Arena in a game in 1979. Days later, he broke a backboard in his own home arena, the Philadelphia Spectrum, in a game against the San Antonio Spurs.
Coach of the Newark Express of the ABA. [October 2005]