Swiss-Ghanaian forward Kwadwo Duah inspired Ludogorets Razgrad to victory after scoring in the 3-0 win over CSKA Sofia and keep pressure on league leaders Levski Sofia.
The 29-year-old opened the scoring for the Green Eagles after 31 minutes with a sublime finish.
The strike, which was his fifth of the league this season, came following a tough half an hour trying to break the defence of CSKA.
Just before half time, Petar Stanic doubled the advantage for the hosts before Rwan Crus sealed the win with a second half penalty.
Duah was replaced after 68 minutes, and late in the game, his Ghanaian compatriot Bernard Tekpetey came on for Erick Marcus.
Despite the victory, the Bulgarian champions are six points behind leaders Levski Sofia, who have played a game less.
Duah moved to Bulgarian after a short stint in Germany with Nuremberg and has since been a key figure at Ludogorets.