Manchester City forward Gabriel Jesus was sent off for an appalling head-high tackle during Brazil's narrow 1-0 win over Chile in the Copa America quarter-finals on Saturday.
A 46th minute goal from Lucas Paqueta was enough for the Selcecao to book their place in the last-four of the competition, where they will face Peru in Rio de Janeiro on Tuesday.
But just minutes after Paqueta's strike Jesus was given his marching orders with a straight red card after a moment of utter madness, leaving his team having to play the vast majority of the second-half with ten men.
The 24-year-old challenged Chile defender Eugenio Mena for a 50-50 ball, but while the former went in with his head Jesus led with his foot, and was wildly out of control as he kung-fu kicked Mena in the face.
Jesus could have no complaints with the decision, and he will now be banned for his country's crucial semi-final fixture next week.
Speaking after the game he did apologise for the horrific tackle, and took to Twitter to post: "Unfortunately I made a mistake in which the team could have suffered, but this group once again showed strength.
"I apologise to my teammates and I will always continue to try to learn from my mistakes. I'm relieved to hear that Mena is fine and we've already talked about it.
"Again, this group is gigantic! We go to the semi!"
On Instagram Jesus added a picture of himself walking off the pitch along with the caption: "Nothing lasts forever, neither pains nor joys. Everything in life is learning. Everything in life surpasses itself."
The Copa America quarter-finals continue on Sunday as Uruguay take on Colombia and Argentina face Ecuador.
Meanwhile there has been some talk recently that City could sacrifice Jesus in a swap deal with Tottenham as they look to pry England striker Harry Kane away from the North Londoners.
City have serious interest in making a move for the Three Lions captain during the transfer window after he expressed his desire to leave Spurs in pursuit of a new challenge to compete for silverware.
But Spurs chairman Daniel Levy has no intention to sell his prized asset with claims City will be required to up their £100m offer that has been reported.
To sweeten the deal, City have offered either Raheem Sterling, Riyad Mahrez, Aymeric Laporte, Bernardo Silva and Jesus as a makeweight in a potential part-exchange for Kane.