Borussia Dortmund have emerged 2-1 victors from their last two clashes with Mainz. BVB have won three and drawn two of their last five games in all competitions. Robert Lewandowski (right) has scored two goals in each of his last three games. Mainz's last victory over Dortmund came back in 2009 when they won 1-0 at the Coface Arena. Christian Heidel's team have won four of their five home games in the Bundesliga this season, losing just once. Goals have been hard to come by for Saturday's hosts, however, with just 15 scored from their 12 league games to date. A Mainz victory would move the club to within just two points of Jurgen Klopp's side in the table.