Arsenal have agreed a transfer fee to sell Belgium forward Leandro Trossard to Beskitas.
The 31-year-old has been given permission to travel to Istanbul to undergo a medical.
Trossard, who is contracted until 2027 with the Gunners, joined the club from Brighton for £21m plus add-ons in January 2023.
"Negotiations have commenced with professional football player Leandro Trossard and his club Arsenal regarding his permanent transfer," the Turkish Super Lig side said in a statement.
He has scored 36 goals and registered 34 assists in 174 appearances at Arsenal, helping Mikel Arteta's side win last season's Premier League title.
Trossard was a key player last season for Arteta, starting in the Champions League final defeat by Paris St-Germain and 21 times in the league.
Belgium reached the quarter-finals of this summer's World Cup, with Trossard starting all six games and scoring twice.



Miracles Aboagye's arrest: 'Allow the law to take its course' — Sukparu tells NP...
Supreme Court suspends Court of Appeal order restoring GN Savings and Loans lice...
'I was angry over my suspension' – Paul Afoko
Bank of Ghana revokes Zeepay's electronic money licence over regulatory breaches
Bawumia did not show leadership by refusing to join clean-up exercise — Apanga
ECOWAS delegation begins study tour of NPA's fuel quality regulation
GH¢50m bail for Miracles Aboagye not punishment, justified by amount under probe...
Obuasi: Three arrested for allegedly disrupting NPP constituency elections, gran...
KMA to resume demolition of unauthorized structures at Asafo Interchange on July...
'Your statement never said Miracles cannot be found, hiding, declared wanted; st...