He comes from a keen basketball family; his father also was a professional basketball player. He first started playing in the Joventut Badalona team, in the ACB (2003-2008). In 2008 he left the Joventut team and started playing for the Portland Trail Blazers in the NBA league. His first match with this team was against his old friend Pau Gasol.
His second year joining the NBA was not as good as he expected, he got backache several times. In December 2009, Fernández underwent microdiscectomy surgery for a herniated disc. It was causing leg pain.
- Rudy Fernández official NBA.com player page 6'6" 1.98m in height.
- "Rudy makes jump to the NBA". FIBA. 6 June 2008. http://www.fiba.com/pages/eng/fc/news/lateNews/p/langid/1/newsid/25503/arti.html. Retrieved 28 June 2011.
- Sean Meahger (2008-07-01). "It's official: Blazers sign Rudy". OregonLive.com. http://blog.oregonlive.com/blazers/2008/07/its_official_blazers_sign_rudy.html. Retrieved 2008-07-01.
- Meagher, Sean. "Blazers G Rudy Fernandez to miss 4-6 weeks after microdiscectomy". OregonLive.com. http://blog.oregonlive.com/blazers/2009/12/rudy_fernandez_to_undergo_proc.html. Retrieved 24 November 2010.
- "Nuggets acquire Brewer, Fernandez from Mavericks". NBA.com. 2011-12-13. http://www.nba.com/nuggets/news/fernandez_brewer_trade_12_13_2011.html. Retrieved 2011-12-14.
- REAL MADRID brings back Fernandez