South African Under-19 star Tristan Luus enjoyed a stellar CSA T20 Challenge debut to help the Dolphins to a much-needed victory over Pietermaritzburg neighbours the Tuskers in Potchefstroom on Monday.Luus was one of the standout performers in the SA side that reached the semi-finals of the ICC Under-19 World Cup held across Mzansi earlier this year.Having already seen national team teammates Kwena Mphaka (Lions), Lhu-handré Pretorius (Titans) and Juan James (Western Province) make their senior provincial debuts in the T20 Challenge, Luus was not going to waste his opportunity.Luus…