The 21-year-old Freiburg defender is regarded as one of the brightest hopes for the next generation of Turkey internationals and was the target for both Manchester City and United during the last transfer window.
Their overtures were rejected by the Bundesliga outfit, who expect their prize asset to remain with them through to the summer.
A central defender, Soyuncu has won nine caps for his country, making his debut against Sweden in March 2016.
Liverpool’s interest is more pressing than their Premier League rivals. Their rickety defence has seen them drop out of the top four places after a decent start to the season. None of the combinations tried by Jurgen Klopp since the 4 – 0 drubbing of Arsenal has shown any consistency, suggesting major surgery will be required next summer.
Freiburg, 15th in the Bundesliga, are in a relegation battle this season and will be reluctant to sell in January. Despite being able to command a fee in excess of £20m, the money the club stands to lose if relegated far outweighs anything which the English clubs might offer.
Whether Soyuncu wants to be so patient is the decisive factor.