They have renewed for the 2025-26 season
Besiktas retains four players: Mathews, Morgan, Arslan, Ugurlu

Besiktas GAIN Istanbul has confirmed that Jonah Mathews, Conor Morgan, Yigit Arslan and Berk Ugurlu have all penned extensions to remain at the club for the 2025-26 season.
Mathews led Besiktas in scoring last season, his second with the team, by averaging 15.4 points per night. He was also fourth in assists with 2.4 dimes per game, while he had the highest PIR average of any Besiktas player with 12.1.
Morgan, meanwhile, was sixth in scoring with 8.9 points per contest and fifth in assists with 1.4 per game, but second in rebounds with 4.5 boards per night.
Arslan missed just one game last season and posted averages of 7.9 points and 2.5 rebounds.
Ugurlu was one of four players to feature in all 19 of Besiktas's games in 2024-25, averaging 5.8 points, 2.2 rebounds, 3.2 assists and 0.9 steals.