Education
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. He once again finished the regular season by scoring two tries in a match, this time in a 76–7 victory over the Border U21s, and once again suffered a semi-final defeat at the hands of Western Province, who beat the Golden Lions U21s 44–41 after extra time.
Career
His regular position is lock. Erasmus went to Hoërskool Garsfontein in Pretoria, but never represented the Blue Bulls at any high school rugby tournaments. After high school, he made the move to Johannesburg to join the Golden Lions academy prior to the 2012 season.
One of his starts came in the semi-final against Western Province U19, but he could not prevent the side from Cape Town winning the match 24–14.
He moved up to Under-21 level in 2013 and played in seven matches for the Golden Lions U21. In 2014, Erasmus was included in the Golden Lions squad for the 2014 Vodacom Cup competition.
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. After another appearance off the bench against the Blue Bulls, Eramus scored his first senior try in a 40–37 victory over the Griffons in Johannesburg.
He made his first start in their Round Six match against the Limpopo Blue Bulls in Polokwane and scored one of the Golden Lions" sixteen tries in a 110–0 victory.
The Golden Lions finished in fourth spot on the Northern Section log to secure a place in the quarter finals, where they met a Sharks XV that topped the Southern Section. He started the final against the Griquas in Kimberley in an unfamiliar Eighth man role and could not prevent his side losing the match 6–30 to finish the competition as runners-up. 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.
He 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.
