The Reds loanee picked up an issue ahead of the first group clash against Rangers in the Champions League at Anfield.“Last week was not the best for me,” wrote Arthur in a message on social media. “Sadly, as you know, an unfortunate injury to my left thigh will keep me out of action for a while.

“It comes just at time when, after huge effort and lots of hard work, I was ready to establish myself in my new team and determined to fight for my dream of playing at the World Cup.“It is now time for me to keep my head up and join forces with my family and do everything I need to with my team to make sure I come back stronger as soon as possible.“No obstacle will prevent me from progressing in my career and I have great ambition to show what I can do on the pitch.“In the meantime, I will continue to support my Liverpool teammates and my beloved Brazil national team.“Thanks for all the messages of support!”