The encounter was a tense affair, with both sides creating several goal-scoring chances — particularly Pirates, who dominated possession but struggled to find a breakthrough.
With the match seemingly headed for extra-time, Pirates captain Mbekezile Mbokazi produced a moment of brilliance, intercepting a Siwelele attack before unleashing a powerful strike from range that beat goalkeeper Samkelo Xulu, sending the Soweto giants into the quarter-finals.
"It was a tactical game. Coach Lehlohonolo Seema came with Samir Nurkovic up top. We knew they would play long balls and fight for the second ball," Hotto told the club's media team.
"But we managed to deal with it. For us, what's important is that we're through to the quarter-finals."
The Namibian international acknowledged Siwelele's preparation, admitting that their defensive structure made it difficult for Pirates to use their width effectively.
"They did their homework, they closed us on the outside, and we had to go through the middle. It was difficult," Hotto added.
"The goal we scored came from Mbokazi going through the middle, and it was a very nice shot."
Having advanced to the last eight of the competition, the Buccaneers will now face defending champions Magesi FC for a place in the semi-finals.
Golden Arrows coach Manqoba Mngqithi says he is expecting a 'different' Carling Knockout Cup semi-final match against Marumo Gallants at King Zwelithini Stadium on Sunday.
Siwelele head coach Lehlohonolo Seema has singled out midfielder Grant Margeman for praise following the 2-0 Betway Premiership victory over Stellenbosch in midweek.
Miguel Cardoso says Mamelodi Sundowns need to build on their 1-0 midweek win over TS Galaxy to make up for a poor start to the Betway Premiership campaign.
Orlando Pirates coach Abdeslam Ouaddou has warned his side not to get ahead of themselves as they prepare to face Richards Bay in the Carling Knockout semi-finals.
