Erasmus and Shalulile got off to a dream start for their new team this season after both strikers opened their scoring accounts against Kaizer Chiefs on Saturday.
The Brazilians beat Amakhosi 3-0 with Shalulile and Erasmus scoring a goal each before Themba Zwane netted from the spot to hand the defending champions a convincing first win of the season.
Sundowns have always preferred a lone striker up front but surprised Kaizer Chiefs coach Gavin Hunt when they started with two strikers at the same time at FNB Stadium.
The new combination did not disappoint and paid dividends for Mngqithi, Rhulani Mokwena and Steve Komphela (MMK).
"Our past three seasons we have not been scoring enough goals, we have been creating opportunities, working hard to improve those statistics, but they have not really been coming out," said Mngqithi after the win.
"We were fortunate our defensive record has been good. With Kermit, [Gift] Motupa, [Mauricio] Affonso, Gaston [Sirino] and Shalulile we should hope for a little bit better in terms of numbers we can collect from them."
"It's encouraging to see them playing together for first time but I believe there is still room for improvement. The intensity was not at the level we wanted. Kermit died a little bit in the second half before he could score.
"It's encouraging to see both scored in the first league match this season."
Sundowns are set to welcome newcomers Tshakhuma FC in their next league match at Loftus Stadium on Wednesday (19h30).
Aubrey Modiba - SuperSport United boss Stan Matthews has confirmed that the versatile left-sided player's move to Sundowns is done.
Luvuyo Phewa - This signing went under the radar, but Real Kings confirmed a deal with Sundowns for the former SA under-20 star. He has since been loaned to Chippa United.
Lesedi Kapinga - Black Leopards' most exciting player this year signed a pre-contract with Sundowns in January and was allowed to leave before the resumption of the 2019/20 season.
George Maluleka - 'Mido' signed a pre-contract with Mamelodi Sundowns in January and was then sidelined him from the team and allowed to leave for Chloorkop during lockdown.
Gift Motupa - Sundowns finally landed their long-time target during lockdown after missing out in past transfer windows.
Mothobi Mvala - The former SA under-23 star's move is a surprise considering the sheer volume of midfielders at Chloorkop. A quality signing Sundowns just could not pass up.
Peter Shalulile - The 16-goal Namibian striker has expressed his excitement about the move after Highlands Park was sold to Tim Sukazi.
Kermit Erasmus - Unveiled by Mamelodi Sundowns on a three-year deal.
Khuliso Mudau - The right-back has signed a five-year deal with Sundowns.
Haashim Domingo - The exciting Ajax Cape Town youth product was the second ex-Wits star to confirm to snl24.com/kickoff that he had joined Sundowns.
Grant Margeman - SA under-23 international midfielder Margeman was signed in 2019 and then sent to Ajax Cape Town for the 2019/20 season.
Jody February - February was signed from Ajax Cape Town in 2019 and then loaned to Cape Umoya United for the 2019/20 season.
Ricardo Goss - The goalkeeper was the first of three former Bidvest Wits players to indicate to this website that Sundowns had signed him.
Brian Onyango - The 26-year-old Kenyan defender was snapped up on a three-year deal after initially being unveiled by TTM.
Rushine De Reuck - The 25-year-old has been signed from Maritzburg United on a five-year deal.