Mulumbu was on the scoresheet in the crucial victory.
"To score was a great feeling but the most important thing was winning the game," said Mulumbu.
"We conceded an early goal, which made things really hard.
"But at half-time we talked about being positive, staying in the game and we came back well.
"I'm very proud of my team today because we showed great mentality and a positive attitude."
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