Question: What was the nickname of the 1960 Olympian who played for the Cincinnati Royals and Milwaukee Bucks?
Context: Wayne Richard Embry (born March 26, 1937) is a retired American basketball player & basketball executive.  Embry's 11-year playing career as a center/forward spanned from 1958 to 1969 playing for the Cincinnati Royals, Boston Celtics and Milwaukee Bucks, all of the NBA.  After his playing career, Embry transitioned to a career as a professional basketball executive, becoming the first African-American general manager & team president in NBA history. The 1972 NBA draft was the 26th annual draft of the National Basketball Association (NBA).  The draft was held on April 10 and 15, 1972 before the 1972–73 season.  In this draft, 17 NBA teams took turns selecting amateur U.S. college basketball players and other eligible players, including international players.  The first two picks in the draft belonged to the teams that finished last in each conference, with the order determined by a coin flip.  The Portland Trail Blazers won the coin flip and were awarded the first overall pick, while the Buffalo Braves were awarded the second pick.  The remaining first-round picks and the subsequent rounds were assigned to teams in reverse order of their win–loss record in the previous season.  As a result of last year's supplemental hardship draft, the Cincinnati Royals, the Atlanta Hawks, the Golden State Warriors and the Baltimore Bullets forfeited their first round picks, while the Los Angeles Lakers forfeited their fourth round pick.  Prior to the start of the season, the Cincinnati Royals relocated and became the Kansas City-Omaha Kings.  The draft consisted of 18 rounds comprising the selection of 198 players. George Patterson (November 26, 1939 – December 22, 2003) was an American basketball player who played in the National Basketball Association.  Patterson was originally drafted in the twelfth round of the 1961 NBA draft by the Cincinnati Royals.  He would finally play in the NBA with the Detroit Pistons from 1967 to 1968.  Later, he was selected by the Milwaukee Bucks in the 1968 NBA Expansion Draft. John Thomas "Tom" Marshall (born January 6, 1931) is an American former basketball player and coach.  He graduated from Mount Juliet High School in Mt. Juliet, Tennessee.  He was a star at Western Kentucky University in the 1950s, where he was a two-time All-American.  His number 41 is one of only six retired at Western Kentucky.  He was named to the OVC Half-Century Team and the OVC 40th Anniversary team.  A 6'4" forward, he was drafted by the Rochester Royals with the seventh pick of the 1954 NBA draft.  After a promising rookie season, he was drafted into the Army and missed the 1955–56 season.  In a four-year NBA career, he played for the Royals (in both Rochester and Cincinnati), as well as for the Detroit Pistons.  In his final year as a player (1958–59) he served as a player-coach; then coached the Cincinnati Royals for one additional season (1959–60) after retiring from playing.  The Royals would eventually become the Sacramento Kings many years after his retirement. Zaid Abdul-Aziz (born Donald A. Smith on April 7, 1946) is a retired American professional basketball player.  Donald Smith changed his name to Zaid Abdul-Aziz in 1976 after he converted to Islam.  The 6'9" Abdul-Aziz starred at Iowa State University before being drafted by the NBA's Cincinnati Royals in 1968.  He played ten seasons in the league as a member of the Royals, Milwaukee Bucks, Seattle SuperSonics, Houston Rockets, Buffalo Braves, and Boston Celtics.  Nicknamed "The Kangaroo", he had his finest season in 1971–1972, when he averaged 13.8 points and 11.3 rebounds for Seattle.  He retired in 1978 with career totals of 4,557 points and 4,065 rebounds. Wilma Glodean Rudolph (June 23, 1940 – November 12, 1994) was an American sprinter from Clarksville, Tennessee, who became a world-record-holding Olympic champion and international sports icon in track and field following her successes in the 1956 and 1960 Olympic Games.  Rudolph competed in the 200-meter dash and won a bronze medal in the 4 × 100-meter relay at the 1956 Summer Olympics at Melbourne, Australia.  She also won three gold medals in the 100- and 200-meter individual events and the 4 x 100-meter relay at the 1960 Summer Olympics in Rome, Italy.  Rudolph was acclaimed the fastest woman in the world in the 1960s and became the first American woman to win three gold medals in a single Olympic Games.  Due to the worldwide television coverage of the 1960 Summer Olympics, Rudolph became an international star along with other Olympic athletes such as Cassius Clay (later known as Muhammad Ali), Oscar Robertson, and Rafer Johnson who competed in Italy. The MACC Fund - Midwest Athletes Against Childhood Cancer, Inc.- was founded on December 10, 1976, during the retirement of Jon McGlocklin from the Milwaukee Bucks.  Jon's friend, Longtime Milwaukee Bucks Broadcaster Eddie Doucette, and his wife, Karen, had a son, Brett, who was diagnosed with cancer at the age of 2.  Brett's diagnosis coincided with the timing of Jon's retirement.  It was decided to use Jon's departure from professional basketball to announce the start of the MACC Fund.  During a half-time on the floor of the Milwaukee Arena, the MACC Fund came into being. Bill Dinwiddie (born July 15, 1943) is a retired American basketball player who played in the National Basketball Association.  Dinwiddie signed as a free agent with the Cincinnati Royals in 1966 and began playing with the team in 1967.  In 1969, he was traded to the Boston Celtics for Bob Cousy.  He was later traded to the Milwaukee Bucks for a sixth-round draft pick. The 1962–63 Cincinnati Royals season was the team's 15th season in the National Basketball Association (NBA) and its sixth in Cincinnati.  The Royals were shifted from the Western Division into the Eastern Division before the start of the season because the Philadelphia Warriors had relocated to San Francisco.  In their first season in the Eastern Division, the Royals posted a 42–38 record and finished in 3rd place. Oscar Palmer Robertson (born November 24, 1938), nicknamed "The Big O", is an American former National Basketball Association player who played for the Cincinnati Royals and Milwaukee Bucks.  The 6 ft , 205 lb Robertson played point guard and was a 12-time All-Star, 11-time member of the All-NBA Team, and one-time winner of the MVP award in 14 professional seasons.  In 1962, he became the first of only two players in NBA history to average a triple-double for a season.  In the 1970–71 NBA season, he was a key player on the team that brought the Bucks their only NBA title.  His playing career, especially during high school and college, was plagued by racism.
Answer: The Big O