Besiktas has given Georges-Kevin Nkoudou a four-year deal, ending his time in the Premier League with Tottenham.
Daniel Sturridge has agreed a three-year contract with Trabzonspor, the Turkish Super Lig side confirmed.
Steven Nzonzi is to join Galatasaray on an initial season-long loan, Roma has confirmed.
Trabzonspor has had its appeal against Fenerbahce winning the 2010-2011 Super Lig title dismissed by the Court of Arbitration for Sport (CAS).
After struggling to impress for Fulham, Jean Michael Seri could be close to joining Super Lig champion Galatasaray.
Watch all the goals from the opening round of the 2019-2020 Turkish Super Lig.