Breytenbach played rugby union for the Northern Transvaal Blue Bulls and was tipped to eventually play for the South Africa (RU).
[2] Between 1996 and 1998 Breytenbach played for the Northern Transvaal Bulls in the Super 12 competition.
In 2000, Breytenbach was part of the South African squad at the Rugby League World Cup.
[3] In 2001 Breytenbach played for the Blue Bulls in the Currie Cup.
[4] In 2002 he played in a European Nations Cup match for Russia (RU) against Georgia along with two other South African born players, sparking a protest from Georgia.