The 23-year-old has ended his association with The Eagles for the second time
Ghana winger Bernard Tekpetey has permanently cut ties with German side Schalke 04, making his move to Bulgarian outfit Ludogorets permanent.
The attacker left Veltins Arena for Stadium Ludogorets Arena on a short-term deal last summer after struggling for first-team opportunities at the former.
It is the second time he has had to leave Schalke on a permanent contract after the club sold him to Paderborn in 2018 before exercising a buy-back option to bring him back to Veltins Arena after a year.