The City faithful were delighted with the centre-back's performance during Saturday's Premier League win.
The Premier League champions needed to grit their teeth as Frank Lampard netted a first-half winner for Manuel Pellegrini's men.
But sometimes grit is exactly what you need in the top flight and Mangala and co provided plenty of it at the King Power Stadium.
"It is an important victory. It's been a very difficult week for us as we had to play on Wednesday in Rome," Pellegrini told BBC Sport after the Leicester game.
"We play in less then 72 hours another game and it's not enough to recover physically and mentally. And we had a lot of injuries.
"That is why it is important to take a 1-0 lead and defend well."
Defend well Manchester City did and centre-back Mangala was many supporters' choice for man of the match against Leicester City. The 23-year-old appears to finally be finding his feet at the Etihad Stadium and Pellegrini's men managed a clean sheet without captain Vincent Kompany thanks to him and Martin Demichelis.
Here's how Manchester City fans saw Mangala's display on Twitter after the game. It was certainly a good day for the Frenchman!
Love that today Mangala showed how great he could be for #MCFC. Demichelis was strong filling in for Kompany (pls be ok)— Bryan Shirley-Mena (@MenaBrother) December 13, 2014
Mangala is getting much better, 4 clean sheets in a row for him now? Thought he was MOTM today #mcfc— Aguero3 (@Aguero310) December 13, 2014
Defensively sound and solid MOTM was Mangala for me - a win a win and keep pressure on chelsea only worry is strikers #MCFC— Terry Hughes (@ctidbluemoon) December 13, 2014