BBC Sport's chief football writer Phil McNulty has been answering your questions.
Andy asked: During every match, Mohamed Salah is constantly rugby tackled, manhandled, pushed, and grappled by defenders but hardly ever gets a free-kick in his favour. Do you think the refereess have marked him as a diver or are they simply incompetent?
Phil answered: I’ve not seen every Liverpool match, so I cannot make a definitive judgement but I have asked Opta to give me some stats on fouls given for challenges on Mohamed Salah.
Here are some that might interest you.