On 22 May 2021, Petkov made his Bundesliga debut for FC Augsburg in a 5–2 defeat against Bayern Munich.[4] On 2 June he signed a new contract with Augsburg until June 2024, and was then sent for a season long loan to 3. Liga team SC Verl.[5] On 31 January 2023 Augsburg extended Petkov's contract until the summer of 2026 and send him on loan to 2. Bundesliga team SpVgg Greuther Fürth until the end of season.[6] On 19 June 2023 SpVgg Greuther Fürth extended Petkov's loan until 30 June 2024.[7]
Born in Germany, Petkov is of Bulgarian descent.[9] In January 2022 Aleksandar Dimitrov, the manager of Bulgaria U21, confirmed that Petkov expressed his desire to represent Bulgaria and its subject of gaining citizenship.[10] In January 2023 Bulgarian Football Union confirmed Petkov agreed to play for Bulgaria and they are working on making him available to debut in 2023.[11] He received his first call up for Bulgaria on 21 August 2023 for the matches against Iran and Montenegro.[12] On 7 September 2023, Petkov earned his first cap, playing as a starter in the 0:1 loss against the former in a friendly match.[13]
Career statistics
Club
As of 7 January 2023
Appearances and goals by club, season and competition