FT
Bulgaria
1
–
1
Montenegro
Started
FT
Kosovo
1
–
1
Bulgaria
Started
FT
Czechia
2
–
1
Bulgaria
—
FT
Bulgaria
2
–
3
Kosovo
Started
FT
England
4
–
0
Bulgaria
—
FT
Montenegro
0
–
0
Bulgaria
Sub
FT
Bulgaria
0
–
6
England
Started
FT
Bulgaria
1
–
0
Czechia
Started
FT
Bulgaria
1
–
3
Hungary
—
Faded rows: team matches without G. Kostadinov in the lineup