Manchester City boss Pep Guardiola has no doubts Julian Alvarez is Premier League ready.
Alvarez is set to see action in the Community Shield against Liverpool tonight.
"If we play with tighter wings, I see [Alvarez] as complementary to Haaland," said Guardiola.
"If we play with more open flanks, not so much. Julian has already adapted. A good player can adapt in the space of two afternoons.
"If you've got it, you've got it in Argentina and in England."
The 22-year-old has spent his entire career under Marcelo Gallardo at River, but Guardiola isn't worried about him adapting to the Premier League and believes Alvarez is raring to go.
"We were not wrong about Julian. He is a team player," he continued.
"He can score, he knows where the goal is. He is an extraordinary signing. We are going to make the most of Gallardo's work and we hope to add some things to his game. We want him to feel good, he has already adapted.
"Julian has come from a big team, with the obligation to win and keep winning. That is what River is about, just like Boca. That is drummed into a player's head. We also bought that mentality."