Career
His regular position is lock. Youth
He represented the Blue Bulls at the Under-16 Grant Khomo Week in 2010 and at the Under-18 Craven Week in 2012. As a result of the latter, he earned a call-up to the South African Schools side in 2012, where he started in two of their matches, against Wales and England
In 2013, he was included in the Blue Bulls U19 squad for the 2013 Under-19 Provincial Championship.
He was selected in the South Africa Under-20 squad that participated at the 2014 Institutional Review Board Junior World Championship.
He started in all five their matches during the competition – after featuring in their pool stage victories over Scotland, New Zealand and Samoa, which saw South Africa qualify for the semi-finals, he then started their semi-final against New Zealand and the final against England, but couldn"t prevent them suffering a 21–20 defeat in the final. Blue Bulls
Janse van Rensburg made his first class debut during the 2014 Vodacom Cup competition when he played off the bench in a match against Griquas in Pretoria.
A second substitute appearance followed a week later against the Pumas in Nelspruit.
