By now, we all know what a wonderful footballer Dele Alli can be, but it seems like he has a habit of making the headlines for the wrong reasons this season.After winning back to back PFA Young Player of the Year awards, Alli has become one of the hottest properties in world football.He's also been courted by the world's biggest agents and rumours of interest from Real Madrid refuses to go away.However, he has failed to replicate his best work this season and has found himself in trouble on more than one occasion.On top of being banned for England after appearing to raise his middle finger to the referee, Alli has been involved in a confrontation with Ashley Young as well as putting a horror tackle on Kevin de Bruyne on Saturday during Spurs' 4-1 defeat.Man City romped past Tottenham at the Etihad Stadium and Alli clearly cut a frustrated figure, but it seems like De Bruyne wasn't the only player to feel his nasty streak.The ever robust Fernandinho also fell victim to Alli's darker side in an incident that was captured just before half-time and, once again, it looks like he stamped on him.Take a look at the video below and make up your own mind:

Naturally, Man City boss Pep Guardiola was not pleased with Tottenham's rough tactics and after their meltdown against Chelsea two seasons ago, it's becoming a recurring theme in big games.

“It was a dangerous action, like the one with Harry Kane and Raheem,” Guardiola said after being questioned about Alli’s challenge.

“It’s their football, the physicality of the Premier League and players have to adapt. You saw what happened. Thankfully, it was just a kick.”

Alli still has seven goals and six assists to his name this term, but while a nasty streak can bring out the best in some players, it appears to be weighing him down this season.

As you can imagine, Twitter isn't happy: