Arsenal manager Arsene Wenger says attacking midfielder Alexis Sanchez has a lot in common with former Liverpool striker Luis Suarez as the Gunners prepare to host the Reds at the Emirates.
The Chilean was expected to be short of fitness for the start of the campaign but has recovered in time from the Copa America to be in the starting line-up against Crystal Palace last week.
He will be one of the highlights of tomorrow's match as he will be looking to score his first goal for the Gunners in this campaign.
"He is already better than when he arrived," Wenger told Arsenal's official website.
"In his final finishing there is room for improvement, in his final ball he is already much better, his vision is quite good and incisive.
"He has that desire to go forward and provoke. He is a guy who provokes chaos in the defences because he has a go at you.
"He does not go across, he goes straight. His desire to go forward, to provoke opponents, to run at people, creates danger.
"I have had players like that but he has the style. What Sanchez has is that in the first two yards he is lightning quick. He has that explosive attitude linked with his spirit. That makes him even more spectacular.
"They [Sanchez and Suarez] are at the same level.
"Suarez is a central striker and Sanchez is more a wide player who likes to go up and down and is involved in dribbling.
"But they have similarities. In South America they are richer in strikers than Europe.
"You look at Aguero, Messi, Suarez, Sanchez, I could name many of them. They produce more than us and we have to look at ourselves and see how we can correct that."