According to the Football411.com website, with the Premier Soccer League clash seemingly heading for a goalless draw, the 24-year-old Senegalese defender spotted Wayne Sandilands off his line and launched a mammoth kick over the goalkeeper and into the back of the net, two minutes from time.
Despite enjoying a lion's share of the possession, having a
number of goalscoring opportunities and seeing Nyasha Mushekwi miss a
first-half penalty, Mosimane felt Matsatsantsa deserved the three
points.
VIDEO: SuperSport United v Mamelodi Sundowns, highlights
He said: "They were deserved winners. We are learning hard lessons, like the game against Swallows, but it is important we stick together as the season goes on.
"It's called football, what a game; I'm learning new things from this game every day.
"I've got no words for this game."
SuperSport boss Gavin Hunt, however, admitted his side could have suffered a heavy defeat had Sundowns not wasted their chances in front of goal.
He said: "Let's be honest we should have been 5-0 down by half-time. They had a number of chances, missed a penalty, we were lucky to go into the break on level terms."
Hunt made a number of changes in the second half, and were better for it, with Thabo September doing a good job in maintaining his side's shape from an advanced position in midfield.
Hunt revealed: "Once we made the changes we got back into the game and started moving forward and creating chances. We were much better in the second half."
"To be fair we got out of jail in this game and only won because of a wonder goal."