The Brazilians came to the game on the back of two consecutive draws and opened a nine-point lead at the top of the log courtesy of goals in either half by Neo Maema and Themba Zwane.
Sundowns also kept their 11th clean sheet in the league and Mudau felt it was vital defending league champions to get back on the winning trail.
"We needed these three points, we've been doing very well, unfortunately we played two games that we were drawing," Mudau told SuperSport TV.
"We needed this win as the coaches were telling us we need to work hard, make sure we get the three points.
"Ja it was a great performance from me, I really want to thank the technical team, the coaches. They are doing a great job to make sure we're doing a great job as well, as players."
Thamsanqa Mkhize (Cape Town City) – 33 years, 0 months & 1 day (v Royal AM, 25 Aug 2021)
Amigo Memela (AmaZulu) – 34 years, 1 month & 1 day (v TS Galaxy, 19 Oct 2021)
Ndumiso Mabena (Royal AM) – 34 years, 3 months & 6 days (v Cape Town City, 25 Aug 2021)
Thamsanqa Gabuza (SuperSport United) – 34 years, 3 months & 24 days (v Marumo Gallants, 20 Nov 2021)
Mbulelo Wambi (Swallows FC) – 34 years, 7 months & 28 days (v Royal AM, 22 Aug 2021)
Happy Jele (Orlando Pirates) – 34 years, 9 months & 1 day (v Cape Town City, 2 Oct 2021)
Lerato Lamola (Marumo Gallants) – 35 years, 5 months & 3 days (v SuperSport United, 20 Nov 2021)
Bernard Parker (Kaizer Chiefs) – 35 years, 8 months & 5 days (v Maritzburg United, 21 Nov 2021)
Willard Katsande (Sekhukhune United) – 35 years, 9 months & 12 days (v AmaZulu, 27 Oct 2021)
Scroll through the gallery to see the 10 oldest goalscorers in the 2021/22 PSL season so far