After a three-year stint in Spain with the teams of Real Zaragoza and Espanyol, in the summer of 1991, Nasko Sirakov returned to Gerena. On November 23, the Wolf again faced CSKA. Despite missing a penalty in the 8th minute, just five minutes later the forward brought the stands to their feet after opening the scoring. Levski won the Eternal Derby with 2:1, and at the end of the season it not only won the championship title, but it also made a double, after adding another Cup of Bulgaria to the club's showcase. Sirakov became Bulgaria's top goal scorer for the third time, after scoring 26 goals in 27 matches.