WATCH: Sore loser Neymar slaps celebrating Valencia player following defeat

Neymar, Neymar, Neymar...

The wheels appear to have come falling off for Barcelona. In their last three league outings, Barcelona have suffered defeats to Valencia, Real Sociedad and Real Madrid. The last time the European giants went through a dry spell of three league losses happened over 13 years ago. https://twitter.com/OptaJose/status/721795548081209344 Neymar could be staring down the barrel of a ban for his antics on the pitch following Barcelona’s 2-1 defeat to Valencia at Camp Nou on Sunday. The 24-year-old had another poor showing and appeared to take his frustrations out on the victors after the final whistle was blown. Neymar was caught on camera slapping Valencia full back Antonio Barragán, who was celebrating the win with his teammates. When the defender realised what had happened, he turned to confront the Brazilian who had swiftly pulled a runner. It's important to note that Neymar was slapped with (pun most definitely intended) a four game ban at the Copa America for a similar incident.