Hervelle spent the early part of his career in Belgium. He first played with Verviers-Pepinster in the Belgian League for four years, averaging 11.4 points and 10.6 rebounds per game, in 16 Belgian League games during the 2003–04 season, and becoming the team's captain at only 20 years old. He then signed with the Spanish ACB League club Real Madrid. In the 200506 season, he averaged 24 minutes, 8.5 points, and 5.5 rebounds per game, over 32 games played in the Spanish League. In January 2010, Hervelle signed with Bilbao.[2]
On 3 August 2018, Hervelle signed a one-year contract with Spirou of the Belgian League.[3][4]
On 30 November 2020, Hervelle announced his retirement.[5]
NBA draft rights
Hervelle was drafted by the Denver Nuggets, in the second round (52nd pick overall) of the 2005 NBA draft. He became the first Belgian player ever to be drafted by an NBA team. In 2009, his NBA draft rights were traded to the Houston Rockets, in exchange for James White.[6] On 27 November 2020, Hervelle's draft rights were traded to the New York Knicks.[7]