Barcelona Ansu Fati lost his cool after Hansi Flick sent him to warm up, but chose not to replace him against Celta Vigo.
Fati spent the full 90 minutes on the couch when Barcelona came from behind to beat Celta Vigo 4-3 on Saturday.
The 22-year-old winger has struggled this term for game-time and has only made four LA Liga performances throughout the season.
And his frustrations came over when he was asked to warm up by Gaffer Flick, to be told to sit down again when he returned to the bank.
The former Lienende van Brighton was seen that he threw his bib on the floor and kicked a pitch-side cooler in anger before kicking the stairs on his way.
Fans responded to Fati's anger on social media, in which some suggest that the La Masia graduated will not affect himself.
They wrote: “I get the frustration, but you can't worn that way. This will only harm your chances”.
While someone else added: “Sorry Bro, but anger doesn't solve anything if the coach thinks you're not good enough.”
Others suggested that Fati's frustration was understandable and wondering why he doesn't get more minutes.
A third noticed: “Pau Victor immersed but not Ansu? Stays on!”
And a fourth posted: “I will never understand why Flick does this with the boy”.
He was also not the only member of the Barcelona setup to express his frustrations during the game.
A member of the back room staff was spotted to break an iPad during a profession for a 98th minute fine.
The entire Barcelona bench stood in the arms after Dani Olmo went into the box deep in the injury, only for the referee to wave an error away.
That was until VAR intervened and the referee sent to the monitor to grant the Spot kick.
Raphinha sent the punishment to complete a spectacular comeback that Barca had seen a 3-1 deficit in the second half.
It was a valuable three points for the Catalan club that are now seven points free from Real Madrid at the top of the table.