The 20-year-old Gotze, who will join Bayern at the end of the season in a surprise deal worth a reported 37 million euros, has been nursing a muscle injury that has ruled him out of the biggest game of his career so far.
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"When players like Gotze drop out, maybe the team gets a little weaker," Schweinsteiger told reporters a day before the team's departure for London. "It would have been the biggest game of his career so I sympathise with him.
"However Dortmund will put out 11 players who will give 100 percent for the cause," said Schweinsteiger, hoping that four-times European champions Bayern win the trophy after twice falling at the last hurdle in the past three years.
"We respect Borussia Dortmund but I believe it's down to us if we win or lose," added Schweinsteiger. "If we reach our potential then there are only a few teams in Europe who can beat us."
