The same report also claimed that Vitor Belfort will return from a hand injury to compete at the event, though no opponent was named.
Aldo and Koch were expected to face each other in July, but "Scarface" pulled out with an injury. Aldo has held the title since entering the UFC, and defeated Chad Mendes in Rio earlier this year.
Koch has won 13 of his 14 fights, including a win over Jonathan Brookins last year.
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