In the 2007–08 UEFA Cup, he scored twice in the first two qualifying rounds. His first goal came in the first leg of the first qualifying round home win over Estonian Meistriliiga side Narva Trans on 19 July 2007, and he then scored in the second qualifying round, second leg, a 3–0 home win over League of Ireland Premier Division side Drogheda United. He added a further four goals in the group stage as Helsingborg finished second in Group H. Omotoyossi had scored six goals in six matches, (3 goals against Heereveen of Netherlands, 2 against Austria Vienna and 1 against the Turkish Giants Galatasaray) making him top scorer alongside teammate Henrik Larsson and Luca Toni of Bayern Munich. His six goals were critical in Helsingborgs booking their passage to the last 32. With six goals in a total of eight games, Omotoyossi finished as joint 4th top scorer in the tournament. Despite being a top-scorer in Helsingborg.