Neymar facing suspension for locker room altercation following Barcelona loss to Valencia-Renato Goncalves.

Neymar was not in a good mood on Sunday, and that could cost him a few games.

The Brazilian forward was reportedly involved in a locker room altercation after Barcelona's loss against Valencia at Camp Nou. Neymar allegedly insulted and threw a water bottle in the direction of Valencia defender Antonio Barragán, with whom theBlaugrana star had a heated battle on the pitch.

Neymar was clearly out of his comfort zone on Sunday. He suffered a hard challenge by Barragán (who got a yellow card) in the first ten minutes of the game, and the Spaniard continued to target the Brazilian throughout the match. That clearly upset Neymar, who was visibly tense and nervous during the whole game, and even argued with team-mate Jordi Alba after not receiving a pass.

Spanish Federation officials have been made aware of Neymar's locker room actions, and they are expected to investigate the problem and punish the player if he's found guilty.

Valencia forward Santi Mina was asked about the alleged altercation, and while he didn't accuse the Barça forward, he did mention seeing "something fly" towards his teammate on the way to the locker room, and even delivered this line:

"I don’t know if Neymar just doesn’t know how to lose."

Neymar is clearly not enjoying his best football in the last several weeks, and if the accusations against him are true, he won't be playing football either.