Duba has netted six times already this campaign, accounting for a third of the team's entire tally in all competitions, as Chiefs prepare to face Siwelele in the Carling Knockout quarter-finals on Sunday.
His hat-trick in the previous round against TS Galaxy was a standout performance, with his other three goals coming in the league.
The only other players to score more than once for Chiefs this season are Mduduzi Shabalala and Lebohang Maboe, who have two each, all in the league.
There have been seven other goalscorers this campaign, but nobody has really stepped forward to share the load with Duba, who will increasingly become a marked man for opposition defenders.
Flávio Silva, Langelihle Phili, Luke Baartman, Mfundo Vilakazi, Pule Mmodi, Siphesihle Ndlovu and Bradley Cross are the other players to find the back of the net, while Siwelele's Samukelo Xulu scored an own goal in Chiefs' 3-2 league victory in September.
Duba has scored four of Chiefs' last nine goals, while all six of his strikes this season have come in the second half of matches.
He has also developed a reputation as something of a lucky charm for Amakhosi, who have never lost a match in which he has scored.
Duba's 15 senior goals for Chiefs have come in 11 different matches, of which they have won 10 and drawn one, the stalemate coming against TS Galaxy in a league fixture during the 2024/25 season.
The 22-year-old will be hoping to maintain that remarkable record when Chiefs attempt to book their place in the Carling Knockout semi-finals.
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