Arsenal are reportedly prepared to offer players-plus-cash for Crystal Palace defender Aaron Wan-Bissaka.
Wan-Bissaka has impressed at Selhurst Park this season, and is already valued at €40m by his boyhood club.
According to Mail Sport, Arsenal are prepared to part with academy graduates Ainsley-Maitland Niles and Reiss Nelson to sign the 21-year-old.
Maitland-Niles has impressed when deputising for the injured Héctor Bellerín, but admitted himself he wants to develop as a central midfielder.
Nelson could also be considering his options after enjoying a successful loan with Bundesliga side Hoffenheim, even if his early-season form has tailed off.
Wan-Bissaka is seen as the future of English football at right back and Manchester City are said to have already expressed an interest.