The in-form midfielder made it three goals in three games with a spectacular strike three minutes from time to secure three points and send us top of Group J.
It was a tough night’s work against an impressive Anderlecht team.
Harry Kane opened the scoring but in an open game, the Belgian side equalised through substitute Imoh Ezekiel with 72 minutes on the clock.
However, a substitute of our own would have the final say and all three substitutes were in involved in the winner.
Below: Mauricio speaks to Spurs TV
Heung-Min Son, who made a welcome return after six matches out through injury, initially found Josh Onomah and then Son played the final pass into Mousa, who rifled into the top corner.
After Qarabag played out a 1-1 draw against Monaco, the victory saw us climb to the top of Group J by a point from the French side with two matches left to play – Qarabag away and Monaco at the Lane.
“Football is not easy, sometimes you have to suffer and it’s impossible to play well in every game,” said Mauricio. “On Monday we had a tough game against Aston Villa and it’s not easy to play every two days.
“I’m very pleased with the effort. The way Anderlecht played put us in a difficult situation but the way we competed and showed character is the way we need to take and follow.
“It was a fantastic goal from Mousa and I’m very pleased for him. The impact of Mousa, Sonny and Josh, this is what you expect when the players come from the bench.
“Our objective before the game was to take the three points and to go top of the table.
“But now we need to focus, there is no time to think too much because in two days we need to play the North London Derby and we know this is a very important game for us.”