David Luiz had a tough time of it on his second appearance for Arsenal.
After a good debut against Burnley, Luiz was at fault for two of the goals as Liverpool ran out 3-1 winners at Anfield on Saturday.
The Brazilian defender gave away the penalty that Mohamed Salah scored from to hand Liverpool a 2-0 lead, before getting turned easily by the Egyptian, allowing Salah to stride through on goal and make it 3-0.
It was a bit of a disaster from the transfer deadline day signing from Chelsea.
Luiz sent a message to the Arsenal fans after the game, saying: "Life is tough and football is tough also sometimes. But I know one thing, I will never give up.
"Was always like that my life...I came here with a goal, and I will fight until the end for that. Thank u for the fans, for all the support. I will never hide, winning or losing."
Luiz admitted after the game that he would have fouled Salah in the build-up to the third goal, had he not been booked for conceding the penalty, which he felt was harsh because there was no power in his shirt pull on Salah.
But the 32-year-old received plenty of support from teammates and former colleagues on Instagram following the result.
And fellow Brazilian Gabriel Martinelli, another Arsenal summer signing, showed his support for the centre-back.
In responding to Luiz's Instagram post, Martinelli said: "Você é fera irmão."
Translated, that means You are a beast brother.
The teenager has certainly backed Luiz to bounce back.