Midfielder Khama Billiat scored the only goal for the Brazilians to increase their hopes of advancing to the next stage of the Champions League, with coach Mosimane well-pleased with the 1-0 result.
"It came out as expected,” Mosimane said after the game. “They are a difficult and organised side with experience.
"A goal is important. You play Mazembe, you get a goal, you take it,” he added.
Pitso was delighted with his side’s display despite being relatively inexperienced in the competition, and believes his players are maturing each game.
“We didn't start well in the first 10-15 minutes,” he said. “But I understand, this team has no experience of playing in Champions League; it was their first encounter playing against a big team.
"But what am happy about is that we finished strongly. We showed superiority in numbers and at the end we controlled the game. I think the team is becoming more matured.”
'Jingles' also praised the match officials for their display in the first-leg tie, and hopes for much of the same in Congo.
“The time has changed,” said the Downs coach. “The referees are strong and not afraid anymore. They give yellow cards, they gave my players yellow cards. I hope we get the same thing in Lubumbashi.”
Sundowns are set to travel to Lubumbashi to play the return match in a fortnight’s time.