Kotze was selected to play for France against the All Blacks in 2013, having represented Free State Cheetahs (2008-2009) and Aurillac (2009-2011).
The South-African born French prop signed for Castres in the Top 14 and arrived at the club at the start of the 2016-17 season.
Kotze had made 34 appearances for Castres by the end of the 2017 season.
As of the 2018/2019 Champions Cup, Kotze has had 34 European Cups appearances.
(LS January 17, 2018)
|2016 - present|
|2008 - 2009|
|2009 - 2011|
|2011 - 2016|
|2013 - 2017|