Guy Paul Joseph Sparrow (born November 2, 1932), nicknamed "The Bird", is a former American National Basketball Association player.
 He was drafted in 1955 with the fifth pick in the third round by the New York Knicks.
 In his first season with the Knicks, Guy averaged 11.1 points and 6.4 rebounds per game.
 During his second NBA season, Guy was traded to the Philadelphia Warriors for Jack George.
 In his second season, Guy averaged 5.0 points and 3.6 rebounds per game.
 In Guy's final NBA season, he averaged 2.7 points per game and 2.1 rebounds a game for the Warriors.
Ralph Lee Sampson Jr. (born July 7, 1960) is an American retired basketball player.
 A 7-foot-4 phenom, three-time College Player of the Year, and first selection in the 1983 NBA draft, Sampson brought heavy expectations with him to the National Basketball Association (NBA).
 The NBA Rookie of the Year, Sampson averaged 20.7 points and 10.9 rebounds for his first three seasons with the Houston Rockets before injuries began to take their toll.
 Three knee surgeries later he retired as a four-time All-Star, an NBA Rookie of the Year, and an NBA All-Star Game MVP ().
 One of his many career highlights was a buzzer-beating shot to dethrone the Los Angeles Lakers as Western Conference champions in 1986, derailing their hopes for coveted back-to-back NBA titles, and sending the Rockets to their second NBA Finals in the team's history.
Larry Haskell Friend (April 14, 1935 – February 27, 1998) was an American National Basketball Association (NBA) player.
 Friend was born and raised in Chicago, Illinois and played basketball at Marshall High School in Chicago.
 However, he moved to Los Angeles, California before his senior year and played basketball at Fairfax High School.
 Friend first played college basketball at Los Angeles City College, where he was named an All-American Junior College.
 He then transferred to the University of California, where he was a three-year starter.
 He averaged 19.1 points per game his senior season and was also named to the AP All-American third team.
 Friend was drafted with the fifth pick in the second round of the 1957 NBA Draft by the New York Knicks.
 In his one season with the Knicks, Friend averaged 4.0 points, 2.4 rebounds, and 1.1 assists per game.
 In 1961-62 Friend returned to professional basketball to play for the Los Angeles Jets in the American Basketball League.
 He appeared in thirty-nine games for the Jets and averaged 11.0 points and 3.7 rebounds per game, while also leading the league in three-point shooting (58-163).
 Due to financial problems, the Jets folded midway through their first season.
 Following his playing career, Friend owned an investment business.
 He died on February 27, 1998 in Newport, California of prostate cancer.
Frank Carl Kudelka (June 25, 1925 - May 4, 1993), nicknamed Apples, was an American National Basketball Association (NBA) player.
 In his first two years at Saint Mary's College of California, Kudelka averaged 18.1 points per game.
 Once the shotclock was introduced to college basketball in his junior season, Frank averaged 20.4 points per game.
 He was the nation's fourth leading scorer.
 As a senior at Saint Mary's, Frank averaged 16.2 points per game.
 He was also named an All-American basketball player by the Helms Foundation after his senior season.
 Frank made his NBA debut in the 1949-50 NBA season for the Chicago Stags.
 In his first NBA season, Frank averaged 6.7 points and 2.0 assists per game.
 Frank played four seasons in the NBA with the Stags, Washington Capitols, Boston Celtics, Baltimore Bullets and Philadelphia Warriors.
 In his NBA career, Frank averaged 7.2 points, 3.2 rebounds, and 2.1 assists per game.
The 1975–76 New York Knicks season was the 30th season for the team in the National Basketball Association (NBA).
 In the regular season, the Knicks had a 38–44 win–loss record, finishing in fourth place in the Atlantic Division and failing to qualify for the 1976 NBA Playoffs.
 Earl Monroe was the leading scorer for the Knicks with 20.7 points per game.
 Spencer Haywood led New York in rebounding with 11.3 per game, and Walt Frazier averaged a team-best 5.9 assists per game.
Joseph George "Joe" Smyth (May 22, 1929 – June 10, 1999) was an American National Basketball Association (NBA) player.
 He was drafted with the seventy-seventh overall pick in the ninth round of the 1953 NBA Draft by the New York Knicks.
 He made his NBA debut on December 30, 1953 for the Knicks and played eight games with them.
 Joe finished the 1953-54 NBA season with the Baltimore Bullets averaging career totals of 3.3 points and 2.5 rebounds per game.
Louie Nelson (born May 28, 1951) is an American former National Basketball Association (NBA) player.
 Nelson was drafted with the first pick in the second round of the 1973 NBA draft by the Baltimore Bullets.
 Before the 1974–75 NBA season, Nelson was taken by the New Orleans Jazz in the NBA Expansion Draft.
 After playing two seasons with the Jazz, the Jazz waived him.
 Nelson was signed by the San Antonio Spurs before the 1976–77 NBA season, but was waived after four games.
 In the 1977–78 NBA season, Nelson's final NBA season, he played for the Kansas City Kings and New Jersey Nets.
 In his NBA career, Nelson averaged 9.4 points, 2.4 rebounds and 1.9 assists per game.
Richard P. "Rich" Rinaldi (born August 3, 1949) is a retired American professional basketball player who was selected 43rd overall by the Baltimore Bullets in the 1971 NBA Draft.
 A 6'3" guard from St. Peter's College in Jersey City, N.J., Rinaldi played for the Bullets from 1971–1973 and the Capital Bullets-NY Nets (ABA) from 1973–1974.
 Rinaldi's most successful NBA season came in 1972–73, when he averaged 8.5 points and 2.1 rebounds in 33 games for the Bullets.
The 1968–69 New York Knicks season was the 23rd season for the team in the National Basketball Association (NBA).
 The Knicks finished third in the Eastern Division with a 54–28 regular season record, and qualified for the NBA Playoffs for the third straight year.
 In the first round of the playoffs, New York defeated the Baltimore Bullets in a four-game sweep to earn a berth in the Eastern Division Finals.
 The Knicks lost the division finals to the eventual NBA champion Boston Celtics in six games.
 Willis Reed scored a team-best 21.1 points per game for the Knicks; Walt Frazier led the team with 7.9 assists per game and Reed averaged 14.5 rebounds per game.
Vernon Earl Monroe (born November 21, 1944) is an American retired professional basketball player.
 He played for two teams, the Baltimore Bullets and the New York Knicks, during his career in the National Basketball Association (NBA).
 Both teams have retired Monroe's number.
 Due to his on-court success and flashy style-of-play, Monroe was given the nickname Earl "The Pearl".

Question: Which basketball player had his jersey retired by both the Baltimore Bullets and New York Knicks, and averaged a team high 20.7 points for his team during the 1975-76 NBA season?
Answer: Earl Monroe