Two seasons ago, Bayern Munich were Champions League winners. In each of the last two summers, they've managed to sign a superstar from their opponents for the final at Wembley: Mario Gotze was the first to move to the Allianz Arena in 2013, and Robert Lewandowski joined him last summer.
Moving to Munich was supposed to be the next step forward for the two proven, world-class stars. But as yet, neither has managed to replicate the form that lifted him to a standing among Europe's most coveted stars.
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