Manyisa played with number 10 on his back, following in the footsteps of Bucs legends such as Chippa Moloi and Jomo Sono.
Erasmus did duty in the number 22 jersey, which was previously adorned by the late Lesley Manyathela.
Sea Robbers official Floyd Mbele said the club was merely complying with the rules of the continental competition.
He told Pirates' website: “The rules are fairly simple on this matter. Rule 6.5 of the regulations states that the jerseys of the players must be numbered from 1 to 30, and they must be identical to the numbers indicated on the players’ licenses for the whole duration of the competition. It’s not just in CAF games, even the World Cup has rules where players must wear 1 to 23.
“We complied with the rule and looked at which numbers we had available between 1 and 30 then allocated them accordingly. Our keepers wear 1 and 16 so we gave that to Brighton and Zikalala respectively. We also freed up all the higher numbers so that in the event of someone coming in at the next registration window, then there are numbers available.”
Mbele added: “Outside of a special exception by the CAF committee, the teams involved from the group stages onwards shall not be authorised to wear sponsor logos on their jerseys, more so when the sponsors conflict with those of the competition [in the case of Vodacom and Orange Mobile]. It’s all there in the manual.”