A back problem has ruled winger Andre Schuerrle out of Germany's friendly against Finland and their opening 2018 World Cup qualifier away to Norway.

The 25-year-old Schuerrle was outstanding in creating Borussia Dortmund's first goal, then won the penalty which Pierre-Emerick Aubameyang converted, in Saturday's 2-1 home win over Mainz in opening their Bundesliga campaign.

But the performance has come at a cost as Schuerrle will sit out Wednesday's friendly in Moenchengladbach, which will be midfielder Bastian Schweinsteiger's final international match, and the World Cup qualifier in Oslo next Sunday, the German FA (DFB) confirmed.

"I took a blow, which really affected my back," Schuerrle told German magazine Kicker on Saturday, before his withdrawal was announced.

The friendly against Finland will be Schweinsteiger's 121st and final Germany appearance, having announced his retirement earlier this month.

The 32-year-old has been exiled from the Manchester United first-team squad by new head coach Jose Mourinho and banished to the reserves, but the ex-Bayern Munich star said last Wednesday that he has no plans to leave Old Trafford.

Head coach Joachim Loew is expected to name Schweinsteiger's replacement in Monday's press conference.

Manuel Neuer, who captained Germany in the five of their six Euro 2016 matches which Schweinsteiger started on the bench, is set to inherit the skipper's armband on a permanent basis.