Fireworks were expected for Sunday's derby between St. Etienne and Lyon at the Stade Geoffroy-Guichard and it's safe to say it delivered.Lyon headed into the game looking to keep pace with Paris Saint-Germain and Monaco at the top of Ligue 1, while hosts St. Etienne needed victory to close the gap on the top five.It was the away side who claimed all three points victory, though, by smashing five past their rivals.Goals from Memphis Depay, Mariano Diaz, Bertrand Traore and captain Nabil Fekir (2) gave Lyon a 5-0 victory against 10-man St. Etienne, who had Leo Lacroix dismissed.Fekir was the star of the show, as he has been for most of this season, having now scored 11 goals and assisted a further four in 11 league appearances so far.The 24-year-old's first goal against St. Etienne was a stunner. He picked up the ball just inside the opposition's half, drove towards the 18-yard box and fired into the bottom-left corner.And for his second - the last of Lyon's five goals - Fekir was put through one-on-one with the goalkeeper and made no mistake.Fekir was awesome against St. Etienne, but he hasn't made headlines for his goals, but for the chaos that ensued after his controversial celebration.In the videos below, Fekir runs towards the home fans, takes off his shirt and holds it up, just like Lionel Messi did against Real Madrid last season.His celebration caused outrage among the home support, who were going crazy in the stands and soon invaded the pitch, by which point Fekir had been yellow carded and substituted.Cue scenes of utter madness as hundreds of angry fans swarmed the pitch, with stewards having to step in to stop them from getting to Fekir.

FEKIR'S CELEBRATION CAUSES PITCH INVASION

Mental. Such was the level of disruption it took 30 minutes until the game was able to continue, but Fekir claims he doesn't regret a thing.

He told Canal+ afterwards: "It's a gesture they did not like. I celebrated like that. There was no ulterior motive, no malice.

"Maybe it's not the right move to make - it was 5-0 - but it's still football. I was a little upset. It added a bit of spice, too. There was no need for [the reaction]. I do not regret the gesture."