[3] On 27 August, he made his debut for the B-team, starting in a 1–0 defeat against CD Castellón.

[4] After being rarely used, he joined the reserve team of Getafe CF on 14 December 2017.

[5] On 23 July, he made his debut for the club in a 0–0 draw against FC Vereya.

[6] On 13 August 2024, Rusev joined Ludogorets on loan, being regarded an emergency option for the team's offense following the serious injury suffered by Bernard Tekpetey.

[10] He completed his debut in the match against Gibraltar on 23 September, won by Bulgaria with 5:1 result.