Arsenal have set their asking price for Shkodran Mustafi.
The polarising centre-back joined Arsenal from Valencia for 35m in 2016 and has divided supporters ever since.
Sections of fans clashed during Sunday's friendly loss to Lyon when Mustafi was booed after coming on as a substitute.
According to French publication L'Equipe, Monaco have enquired about the cost of signing the German international.
The Gunners want at least 30m to part ways with the error-prone defender.
