Onyango has had to endure a six-year wait to bring home all trophies having won all other trophies on the local front as of 2015.
On Saturday, he was the hero as he won the trophy that had slipped through his and the club's hands.
"Every trophy is special but this one has been away for a very long time," says Onyango now playing in his sixteenth consecutive season in South Africa.
Prior to Saturday, Sundowns had last won the top 8 in 2007.
"Someone told me that I was lucky number 14 since I wear jersey number 14 and it has been 14 years since Sundowns won the MTN8. So, probably the shirt number made it possible but good fight from the boys who kept on believing even when we missed the first two penalties, we knew that we needed to stay focused.
"This was a good one for me because I had never won it before. I have lost a couple of times. Before I got to Durban it was my son's birthday and I told him that I'm bringing him a trophy and so this is it. This is his birthday gift. The blessings as well that we get from the kids and the family keep us going.
"The more we fight the more we get the trophies and so I think we need to come for the Champions League. Personally, I still want to win the Champions League because it is huge and that is what the club also wants. I want to be the first Ugandan to win it twice," says Onyango.
So good has been Onyango's season that he has kept clean sheets in all the six games that he has played in the league with the club also yet to concede after seven league games.