After high school, Erasmus moved to Johannesburg to join the Golden Lions academy prior to the 2012 season.
He started in twelve of the Golden Lions U19 side's matches during the 2012 Under-19 Provincial Championship, scoring two tries in an 83–3 victory over SWD U19 in their final match of the regular season as the Golden Lions finished in fourth position on the log to qualify for the semi-finals.
In 2014, Erasmus was included in the Golden Lions squad for the 2014 Vodacom Cup competition where he made his first class debut by coming on as a late replacement in a match against near-neighbours the Falcons in a 23–22 victory.
He was named in the Golden Lions U21 squad for the 2014 Under-21 Provincial Championship, but failed to make any appearances in the competition.
He returned to action for the Golden Lions in the 2015 Vodacom Cup and made three appearances as a replacement during the regular season of the competition and started their 29–21 quarter final victory over the SWD Eagles.
Erasmus was included in the Golden Lions' Currie Cup side for the first time in 2015 Currie Cup Premier Division and was named on the bench for their Round Five match against the Eastern Province Kings in Johannesburg.
Eramus made his Super Rugby debut in 2016 against the Cheetahs and earned a further 6 caps that season for the Lions.
He heads into the 2018 Super Rugby season with 26 caps to his name and 10 points scored.
(LS February 14, 2018)
Career
 |
Urayasu D-Rocks No 5 Lock |
2024 - present |
 |
Golden Lions No 5 Lock |
2015 - 2019 |
 |
Lions No 5 Lock |
2016 - 2019 |
 |
NTT DoCoMo Red Hurricanes Osaka No 5 Lock |
2017 - 2024 |
