"Well done to the guys. It's been a very tough season for me and the team because we had so many games,” Onyango told SuperSport TV.
It is Onyango's third PSL title with Sundowns having also won three trophies with SuperSport United.
“But I had to bring my A-game because we knew we were playing a very strong team fighting for their lives,” said the former Bidvest Wits keeper.
The Brazilians netted through substitute Phakamani Mahlambi in the opening half and they managed to ensure that they beat runners-up Orlando Pirates to the title.
“I knew we could score a goal, and of course keeping a clean sheet would be much better for a team that has been fighting for me all season,” he added.
"We knew it was going to be very tough. Coming to Goble Park is never easy even though we've been winning here for the last few years. They were fighting relegation and we were fighting for the league. All we had to do was win our game and leave the rest to the PSL," concluded the Ugandan keeper.
Stars were relegated to the National First Division (NFD) following their defeat to Sundowns.