Socceroos goalkeeper Mitchell Langerak has enjoyed some much-needed time on the park in Borussia Dortmund's 2-0 German Cup win at Saarbrucken.
Dortmund advanced to the German Cup quarter-finals with their win on Tuesday, but Ruhr Valley neighbours Schalke 04 suffered a third-round exit.
German Cup holders and European champions Bayern Munich host Bundesliga rivals Augsburg on Wednesday.
Schalke crashed out with a 3-1 defeat at home to top-tier rivals Hoffenheim.
The Royal Blues' defence was left in disarray as Hoffenheim raced into a 3-0 lead after just 35 minutes with goals by Kai Herdling, Kevin Volland and Roberto Firmino.
Schalke pulled one back through Peru forward Jefferson Farfan with just over half an hour to go.
Dortmund eased their way into the last eight with a comfortable victory at third division Saarbrucken.
Borussia boss Jurgen Klopp opted to rest several stars, but his team went ahead through a first-half header from reserve striker Julian Schieber.
Promising 21-year-old attacking midfielder Jonas Hofmann added a second just after the break.
Langerak played for Australia in their 6-0 loss to France and 3-0 win over Canada in October and is one of the leading contenders to start in goals for Australia at next year's World Cup.
Hamburg went through as they enjoyed a 2-1 win over second-division Cologne, while Union Berlin went down 3-0 at home to Kaiserslautern in an all second-division tie.
In Wednesday's other ties, Freiburg host Bayer Leverkusen in an all-Bundesliga clash, while Wolfsburg host Ingolstadt 04 and Eintracht Frankfurt are at home to Sandhausen.