John Block or John William Block Jr. played in the position of Forward-Center. He was 6 feet 9 inches tall and weighed 207 lbs. From 1967 to 1973, he wore jersey no. 34 for 4 teams. In 1967 he was with the Los Angeles Lakers. He was a player of San Diego Rockets from 1968 to 1971. In 1972 he was drafted to Milwaukee Bucks. In 1973 he was with Philadelphia 76ers. In 1974 when he was a member of Kansas City-Omaha Kings he was given jersey no. 41. In 1975 he was drafted to New Orleans Jazz and he used jersey no. 34. For the 1975-76 season he was with Chicago Bulls and was offered jersey no. 35.
Block was a student of Glendale High School in Glandale, California. Further he attended the University of Southern California. During the 1966 NBA (National Basketball Association) draft, he was chosen by Los Angeles Lakers in the 3rd round. He was the 7th pick and overall 27th pick. In the 1968-69 season, Block amassed 1195 points which are the maximum accumulated by him in a single season. In this season he also made 703 rebounds, 141 assists and 249 personal fouls. Block made 1061 field goal attempts out of which 448 were field goals. He also completed 299 free throws out of 400 free throw attempts.
Block played for 10 seasons in the NBA wherein he participated in 597 games and received 14316 playing minutes. He collected 7106 points, 805 assists and 3965 rebounds. He also made 1733 personal fouls. He had a field goal percentage of 0.433 and free throw percentage of 0.778.