 After playing for the youth teams of 1.FC Gladbeck, Schalke 04, Rot-Weiss Essen, SG Wattenscheid 09 and VfL Wolfsburg, Lasogga attracted the attention of Bundesliga club Bayer Leverkusen, who signed him in 2009.Lasogga quickly established himself in Leverkusen's youth team, making 25 appearances in the 2009–10 season.