Having successfully undergone a trial period, Schalke 04 signed Tekpetey was signed from Ghanaian second-tier side Unistar Soccer Academy in February 2016. He made his debut for the club on 24 November, starting in a 2–0 win over OGC Nice. He won a penalty, which was converted by Dennis Aogo for Schalke's second goal, before being sent off in the second-half after committing two bookable offences.[1]
After a season-long loan to Ludogorets Razgrad, Tekpetey permanently joined the team on 29 June 2021.[2] He established himself as an undisputed starter for the team, becoming a key player and a reliable goalscorer.[3] In May 2024, Tekpetey was handed a four-match ban following a red card received in an ill-tempered match against CSKA Sofia, which saw him miss the remaining matches of the season.[4] In August 2024, he suffered a broken foot in the first leg of the Champions League qualifying match against Azerbaijani team Qarabagh and after undergoing a successful operation in Austria, is expected to be sidelined until the end of 2024.[5] Reportedly, at the time the player was close to finalizing a transfer to Parma, which fell through due to the incident.[6]
^Five appearances in UEFA Champions League, four appearances in UEFA Europa League
^Five appearances and one goal in UEFA Champions League, eight appearances in UEFA Europa League, two appearances in UEFA Europa Conference League
^Three appearances and two goals in UEFA Champions League, four appearances and two goals in UEFA Europa League, Eight appearances in UEFA Europa Conference League