Among his most memorable moments during his 13 seasons at the Catalan side, Alexanko scored the winning goal as Barcelona beat Real Sociedad 1–0 in the 1988 domestic cup final, also playing about ten minutes in the 1992 European Cup Final. Six years earlier he had his penalty shootout attempt saved by FC Steaua București's Helmuth Duckadam, as "Barça" lost the 1986 edition in Seville.