By Tom Roddy for MailOnline Laughter and jokes seemed to surround Lukas Podolski's trip to Borussia Dortmund for Arsenal's Champions League clash. The German striker was in good spirits before the game, laughing with the Gunners' opponents in the warm up and signing autographs for local fans - but there was nothing funny about his cameo later in the match, at least from the forward's perspective. With Arsenal already 2-0 down and heading for defeat, the 29-year-old was called on by boss Arsene Wenger to enter as a substitute - only for the his introduction to comically be delayed. Mesut Ozil watches the game as Aaron Ramsey (sitting) tries to help Lukas Podolski find his shinpad
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Lukas Podolski lost his shinpad after being called as a substitute
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German forward had to borrow shinpad off team-mate Mesut Ozil
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Arsenal lost 2-0 in Borussia Dortmund in Champions League opener
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Podolski, 29, has pre-match chat with Jurgen Klopp and Kevin Grosskreutz
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The Arsenal forward joked with Grosskreutz on the Signa Iduna Park pitch
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The two Germans had a kebab wager on the Group D opener
Podolski and @placeholder check in the dugout while Arsenal were left trailing 2-0 at Borussia Dortmund
Podolski appeared in relaxed spirits ahead of the @placeholder game against Dortmund.