 He made his senior debut for the club on 28 September 2013, replacing Fernando Silva for the final 12 minutes of a A Group match against Levski Sofia at Ovcha Kupel Stadium.On 17 May 2014, Karabelyov scored his first goal in a 2–0 home win over Pirin Gotse Delchev.One year later, he started in the A Group for first time in a 3–1 home loss against Cherno More Varna on 22 May 2015.