 At the start of the 2009–10 season, Tasci made his return to the first team from injury, starting the whole game, in a 2–0 loss against VfL Wolfsburg.In a follow–up match against SC Freiburg, Tasci captained the side for the first time, as he helped Stuttgart beat them 4–2.On 29 August 2009, Tasci extended his contract with Stuttgart until the summer of 2014.