1. In Brazil he is nicknamed “Leandrinho” , and in the USA he is nicknamed “The Brazilian Blur”, referring to his speed.
2. He played on São Paulo State Championship under the command of Lula Ferreira, the future Brazil national team coach.
3. At 19, he played on the principal team of Palmeiras on São Paulo State Championship.
4. During his first season as a professional in Brazil, playing for Tilibra/Bauru, he was coached by Jorge Guerra.
5. He was chosen as Rookie of the Year during the Paulista of 2001.
6. Barbosa holds the Suns record for points scored in a game by a rookie as a first-time starter, with 27 against the Chicago Bulls on January 5, 2004.
7. During the 2006–2007 season, Barbosa averaged 18.1 points, 2.7 rebounds, 4.0 assists and 32.7 minutes per game despite playing off the bench
8. He scored a career high of 41 points against the Oklahoma City Thunder on February 20, 2009.
9. On July 14, 2010, Barbosa was traded along with Dwayne Jones to the Toronto Raptors in exchange for Hedo Türkoğlu.
10. On August 18, 2011, Barbosa signed with Flamengo Basketball of Brazil for the duration of the 2011 NBA lockout.
11. His deal had an out-clause that would allow him to return to the NBA once the lockout ended. In December 2011, he returned to the Raptors.
12. On March 15, 2012, Barbosa was traded to the Indiana Pacers for a future second-round pick. With the help of Barbosa, Indiana improved significantly enough to make it to the second round of the playoffs before losing to the Miami Heat.
13. On February 12, 2013, after a game against the Charlotte Bobcats on February 11, it was confirmed that Barbosa had suffered a torn ACL in his left knee.
14. This injury ruled him out for the rest of the 2012–13 season.
15. On November 19, 2013, Barbosa signed with the Esporte Clube Pinheiros of Brazil for the 2013–14 season.
16. During this time, he averaged over 20 points, 3 rebounds, and 3 assists for the team.
17. In January 2014, he returned to the United States to play in the NBA once again.
18. On January 8, 2014, Barbosa signed a 10-day contract with the Phoenix Suns. Barbosa would immediately play for the Suns in their 104–103 close victory over the Minnesota Timberwolves.