According to The Athletic, Troost-Ekong joined the club on a deal worth around €1.2 million on a two-year contract with an option for a third year.
The €1.2 million transfer fee makes this move the second-highest transfer of Troost-Ekong’s career.
His most expensive transfer came in August 2018, when Serie A club Udinese paid €3.3 million to secure his services from Turkish side Bursaspor.
Interestingly, Bursaspor was the first club to spend money on Troost-Ekong, acquiring him for €1.05 million from KAA Gent in 2017.
The Netherland-born, who had a laudable AFCON campaign with Nigeria, has also played at Tottenham Hotspur, Udinese, and Watford, from where he joined PAOK.