Cyriel Dessers will miss the rest of the 2025/26 season after opting to undergo surgery on a persistent thigh injury, reports Completesports.com.
The Nigeria international is expected to be sidelined for around three months.
Dessers sustained the injury during the 2025 Africa Cup of Nations earlier in the year.
The 32-year-old returned to Greece for treatment, failing to make a single appearance for the Super Eagles at the competition.
Panathinaikos had earlier said in February that he was back doing on-field work and nearing a return.
According to Sportal Greece, Panathinaikos considered immediate surgery after medical examinations confirmed that the injury had not healed adequately.
Dessers joined Greek giants Panathinaikos from Scottish Premiership giants, Rangers last summer.
The former Cremonese star registered two goals and one assist in just five league appearances for the club.
