Arsenal have agreed a deal with Chelsea worth around £65m for Germany international forward Kai Havertz.
It is understood the clubs have made an agreement in principle that will allow the player to discuss personal terms and have a medical.
The fee for Havertz, who scored nine goals in 47 games for the Blues last season, could rise with add-ons.
Havertz, 24, joined Chelsea from Bayer Leverkusen in 2020 for a deal worth about £71m.
He also scored the winning goal for Chelsea in the 2021 Champions League final against Manchester City.
Havertz is set to move across London as Mikel Arteta looks to strengthen his Arsenal team following qualification for the Champions League.
Chelsea are seeking to reduce their squad size and have also agreed a £30m deal with Manchester City for Croatia midfielder Mateo Kovacic, 29. Another midfielder, France international N’Golo Kante, 32, has agreed to sign for Saudi Arabian champions Al-Ittihad when his contract expires at the end of June.