Manchester City have signed 19-year-old Brazilian winger Gabriel Jesus from Palmeiras for £27m plus add-ons.
Jesus has agreed a five-year deal but will stay with Palmeiras until the end of the Brazilian season in December.
City regard the player as the best young talent in South America and fought off interest from Barcelona.
Jesus was voted the best newcomer in the Brazilian top flight last season and is part of his country’s squad at the Rio Olympics.
He is yet to make his senior international debut.
Jesus is capable of playing across the forward line and further boosts new manager Guardiola’s attacking options following Tuesday’s £37m capture of Germany international Leroy Sane from Schalke.
Guardiola has now spent around £100m on players so far this summer.
Meanwhile Chelsea winger Mohamed Salah has signed for Roma on a permanent deal.
The 24-year-old Egypt international spent last season on loan at the Serie A club, making 34 league appearances.
Salah signed for Chelsea from Basel in January 2014 for £11m on a five-and-a-half year deal, and made his debut a month later against Newcastle.
After playing 13 Premier League games, he was loaned to Fiorentina at the end of the 2014-15 season and has remained in Italy since then.
