Australian goalkeeper Mitchell Langerak made his first Bundesliga appearance in nine months as defending champions Borussia Dortmund went second after a thrilling 3-2 victory at Bayer Leverkusen on Sunday.With Dortmund first-choice 'keeper Roman Weidenfeller ruled out with an infection, Langerak played his first game in the German top tier since April 2012 and put in a solid display.Langerak, who left Melbourne Victory to join the German club in May 2010, last played for Dortmund in the side's 5-2 win over Kaiserslautern late last season.He has featured in Dortmund's reserve team, who play in the lower tier competition 3.Liga, three times this season.Dortmund's away win allowed them to claim second spot from Bayer but they remain 12 points adrift of league leaders Bayern Munich.It was a battle royal as the hosts came from 2-0 down to level before Poland striker Robert Lewandowski's winner settled Borussia's nerves.Dortmund needed just nine minutes to take a two-goal lead after a sublime Lewandowski pass left Marco Reus through on goal while Poland midfielder Jakub Blaszczykowski put away a penalty moments later.Leverkusen roared back after the break with Langerak forced into a number of saves before midfielder Stefan Reinartz scored two goals in four minutes early in the second-half to put the home side level.Dortmund replied immediately with Lewandowski handing the visitors a winner on 63 minutes.Dortmund, and gloveman Langerak, held on despite Leverkusen firing in 12 corners and 26 shots on goal over the 90 minutes."The difference was that we did not create the goals, while Dortmund were ice-cold in their finishing," said Leverkusen midfielder Andre Schuerrle.In a good day for Australian's in the Bundesliga, midfielder Robbie Kruse warmed up for the Socceroos' friendly against Romania in Malaga on Wednesday with two goals in Fortuna Duesseldorf's 3-1 win at home to VfB Stuttgart.After Bayern's 3-0 win at Mainz 05 on Saturday, Munich are on course for the German title.Only once, in 2008-09, has a team managed to overturn an 11-point deficit to win the league when Wolfsburg caught Hoffenheim.Munich coach Jupp Heynckes described the win at Mainz as a "very important victory on the road to the title" while Borussia coach Jurgen Klopp has dismissed "ridiculous" thoughts of his team winning a third league title.Earlier Nuremberg coach Michael Wiesinger picked up his first win since taking charge of the struggling outfit in December, as his team enjoyed a 2-1 win at home to Borussia Moenchengladbach.On Saturday, Croatia striker Srdjan Lakic celebrated his debut for Eintracht Frankfurt, having quit Wolfsburg last Tuesday, with both goals in their 2-0 win at Hamburg which kept his team fourth.Bottom side Greuther Fuerth broke their 17-match winless streak with a shock 2-1 victory at Schalke 04, which left the Royal Blues with just one win in their last eight league games.Hoffenheim remain in the bottom three despite picking up their first win since November with a 2-1 victory at home to Freiburg.Wolfsburg were held to a 1-1 draw by strugglers Augsburg and on Friday, Bayern's on-loan striker Nils Petersen scored two late goals to give Werder Bremen a 2-0 win at home to Hanover 96.