 A week later on 19 March 2010, Tasci was declared injured as he suffered an adductor problem.Shortly after declaring fit and returning as an unused substitute in a match against Bayern Munich, Tasci returned to the starting lineup against Borussia Mönchengladbach on 3 April 2010, starting the whole game, in a 2–1 win.Later in the 2009–10 season, Tasci made thirty-eight appearances and scoring two times in all competition; having missed some matches, due to recurrence of injuries he sustained.