Liverpool are reportedly keeping a close watch on Besiktas captain Orkun Kokcu, while Tottenham have been linked with defender Emirhan Topcu as the Turkish club's strong European form draws attention from Premier League sides.
Besiktas, coached by Vincenzo Italiano, have picked up six wins from seven matches across the UEFA Europa League qualifying rounds and league phase, with their high-tempo style helping several players stand out.
According to a report by Turkish sports newspaper Fanatik, Liverpool are closely monitoring Kokcu, who has become one of the players to adapt most effectively to Italiano's fast-paced approach.
The report also claimed that two other English clubs are interested in the Besiktas captain, although their names were not disclosed.
Premier League side Tottenham are meanwhile reported to be following Emirhan Topcu, another player who has drawn attention during Besiktas' European campaign.
Besiktas management are expected to approach any possible offers for Kokcu and Topcu cautiously, with the views of the coaching staff also set to play a role in any decision over their futures.