Georgi Dermendzhiev heaped praise on Ludogorets after the Bulgarian minnows snatched a late draw at home to Liverpool on Wednesday.
Georgi Terziev headed home an 88th-minute equaliser as Ludogorets held Liverpool to a 2-2 draw in UEFA Champions League Group B at the Stadion Vasil Levski.
"I am delighted with the performance. The players are getting better and better with each game," Dermendzhiev told UEFA.com.
"We played really well tactically. We could have scored more and in the end we got a draw.
"The players believed we could win. We played with courage. We could have won in the last minute when Virgil Misidjan broke clear on the left but failed to make a good connection."
Wednesday's draw dashed Ludogorets' hopes of advancing to the Champions League last 16, though the Bulgarians remain in the hunt for a spot in the Europa League.
"We are in the Champions League group stage for the first time and have played very well against the likes of Real Madrid, Liverpool and Basel," the 59-year-old said.
"We are out now but will go to Madrid and play freely and with courage. Anything could happen."
