Davala played with VfR Mannheim, ASV Feudenheim, Türkspor Mannheim, Afyonspor, Diyarbakırspor and İstanbulspor before joining Galatasaray in 1997. He won three successive Turkish championships. In 2000, he helped the club to win the Turkish Cup by scoring two goals in the final against Beşiktaş. In the same year, he helped the club win the 2000 UEFA Cup final against Arsenal and the 2000 UEFA Super Cup against Real Madrid.