Dortmund's Thomas Tuchel expects a "warm welcome" for the returning Jürgen KloppLiverpool manager Klopp won two Bundesliga titles as Dortmund coachThe Bundesliga side are 16 matches unbeaten in 2016Dortmund eliminated English opposition, Tottenham Hotspur, in the round of 16Liverpool press conference scheduled for 18.15CETPossible lineupsDortmund: Bürki; Piszczek, Hummels, Sokratis, Schmelzer; Weigl, Şahin, Kagawa, Mkhitaryan, Reus; Aubameyang.Out: Subotić (arm)Doubtful