Chelsea coach Antonio Conte feared Eden Hazard would be injured during a bad-tempered 1-0 win over Manchester United Stamford Bridge.
N'Golo Kante scored the only goal after Other Herrera was sent off two bookable offenses for Errors on Hazard.
It seemed that the player Spain plays the proclamation of the patent from the United boss Jose Mourinho to identify the Belgium midfielder.
Conte called Hazard and to receive protection from the etikhulwini. It is a call Mourinho has made before, when he was Chelsea manager.
"For Hazard, (because) 20, 25 minutes it was impossible to play football, because he received only entertainment," said Conte.
"How to play and go kick opponent? It's not football to me.
"I do not think that I'm crazy and I see only in this situation.
"Sometimes when you are playing against players a great talent, he tries to intimidate those players.
"The referee must protect these type of players. When they went out of injury ...
"It's dangerous to get a kick from behind."
Conte did not see the incident clearly when he saw United defender Marcos Rojo tread on Hazard as Chelsea forward was falling to Turf. Rojo may face a testing step from the Football Association.
Mourinho opinions on Herrera's dismissal by referee Michael Oliver, laced with sarcasm.
Mourinho told the BBC: "I think we all watched the game until the red card and after the red card and we can compare the decision two yellow cards in this case and other ones that were not, but I do not want to go in that direction.
"Mr Michael Oliver. The officiating with fantastic potential Manchester United were a wicked In four matches, three penalties and one red card such an early moment of the game but again I can not change that ..
"Mr Oliver go home and do his own analysis, because I do not want to analyze his work."
Pressed further post-match press conference, Mourinho suggested Gary Cahill had to be punished.
Mourinho said: "I do not want to speak to me just tell you to compare Herrera second yellow card, yellow card which zone is bad and compare that with a few minutes later when he (Marcus) Rashford to attack. Space captain Chelsea grabs him and stops him and counter-attack.
"So Mr Oliver gave a red card, but could not give a yellow card."
Conte and Mourinho had to be separated by fourth official Mike Jones Italian exception to the challenges of United burden.
"What happened to me only (a) circus," Conte added.
"Trainers limited."
Conte praised the fourth official, as saying: ". He was very good to manage this situation, but certainly it is normal when you play this kind of game"
Conte and Mourinho shook hands in the tunnel after the final whistle.
Mourinho added: "I was able to control my reaction That's good, because this way I can bench the next game ..
"My players need me. It is better to be next to them. So I think that was good for me to control it."
David de Ogea made fine saves to deny Hazard and Cahill in the first half, while United's best chance fell to Rashford, who denied Thibaut Courtois.
Mourinho, who also criticized the clash last time the 16 legs of FC Rostov Europa League, felt United were going to win until Herrera was dismissed.
He added: "Before this, I saw a game with the feeling I was going to win it.
"Everything was under control and the frustration was evident because they could not play the way they play.
"Of the 10 was very difficult for us."
Chelsea advanced to the semi-final, the London derby against Tottenham at Wembley.
Chelsea beat Tottenham in December, but the Spurs ended 13-match Premier League winning streak at their White Hart Lane on January 4.
"We are one win for us and a win," said Conte.
"For sure it will be an interesting game, and very strong both teams."
