- 2.2.1 Siege
In his youth, Sela won the double with Balazs Győrgy the junior tournament the French Open in 2003, the single he reached the 2003 U.S. Open junior tournament of the semi-finals, where he lost to Marcos Baghdatis. In April 2000, he won his first doubles title in Haifa with his compatriot Idan Ben Harosch. In Corfu, Greece, he also won in doubles, reaching the finals in the individual. In April 2001, he won his first singles title in Van Keeken, Netherlands.
In 2002 he became a professional, in March 2003, he won a tournament in Tasmania, 2005, he consecutively won on the ATP Challengertour the tournaments in Vancouver, Canada and Lexington, Kentucky. In 2006 he has won five tournament victories at the USTA Pro Circuit Men's Singles title more than anyone else. In July 2007, he lost the final in Cordoba, Spain.
2005, he has played for Israel at the Davis Cup. In April 2007, he beat Andreas Seppi in five sets in the victory of Israel against Italy.
His best Grand Slam result achieved Sela in 2009 at Wimbledon, where the last sixteen he entered after beating Stefan Koubek, Rainer Schuettler and the set of 15 Spaniard Tommy Robredo against Novak Djokovic and only lost here.