Liverpool midfielder Dominik Szoboszlai has questioned whether officials want players to "dive" in the box after his team were denied a penalty in Sunday's 1-0 defeat to Arsenal.
Kai Havertz scored the only goal as the Gunners secured their first victory at Anfield in more than 14 years.
However, Liverpool were left frustrated after both referee Andy Madley and VAR Stuart Attwell failed to punish Jurriën Timber for a shirt pull on Alexander Isak in the penalty area.
"It's a penalty," Szoboszlai said after the game. "I don't know what they expect from us: to dive or something.
"I don't think we are the type of team or players to do that but from now on we might need to do it. If Alex falls down it's a clear penalty. Timber doesn't really care about the ball and maybe if he doesn't pull Alex's shirt, Alex can head it in the goal.
"We are just one penalty less and that's a big difference."
Asked whether Liverpool need to become more streetwise, Szoboszlai said: "It is not our type of play. I don't think in this moment you can think this way that 'Oh, let me wait for someone touching me and I'll fall down.'
"No, he is focusing on the ball and he wants to head the ball in the net. But if you interfere with your hand on his back then he might not do it, then you take a chance from his point of view and it's a penalty. Everyone sees it differently but I don't think you can see this one different."
Szoboszlai came off the bench in the second half against Arsenal, making his first appearance since he aggravated a hamstring issue in Liverpool's 2-1 victory over Brentford last month.
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"It's very hard, you know," the Hungary international said. "I'm the type of player, as you might know, that the last three seasons I want to play every 90 minutes but sometimes your body says 'rest a little bit' and my body told me to 'stay calm, you've had enough games now.'
"I missed games against City and LASK and then I felt again very good after a couple of days off but it seemed I wasn't ready. But sometimes it is my heart, and I listen to my heart and not my body. These decisions I made with what happened in the last weeks so today was the plan to come in. I was actually ready from the start but I've played 30 minutes and let's see from now on."