The Portuguese keeper, Iker Casillas, expressed his anger at the refereeing decisions and openly criticized the referee through his official account on Twitter after the Liverpool and Porto Champions League match, where he saw the first half, touching Liverpool defender Lloyd Arnold before he graduated From the pitch, but the referee saw the shot through the video and decided not to count a penalty for Porto.
In the second half of the match, he saw a strong intervention from Egyptian star Mohammed Salah on the feet of Danilo Porto player, and Salah hit the leg of his opponent over the ankle directly strong.
To express his indignation at the referee's decisions, Casillas posted a hand-held image of Arnold inside the box on Twitter and another showing the horror of his intervention on Danilo.
British international referee Mark Klattenberg told the Daily Mail newspaper that Salah was "lucky" not to receive a red card after his strong intervention.
I think it definitely deserves a red card, "former England defender Danny Mills said of the state of Salah.
Liverpool beat Nabi Keita in the 5th minute and Brazilian Roberto Fermino in the 26th minute. The two teams play in the second leg next Wednesday, and Porto will face a difficult task to make up for the delay.