Jan Ravnik is clapping back at Maksim Chmerkovskiy! During an episode of wife Peta Murgatroyd's podcast, The Penthouse with Peta, Maks went off about Taylor Swift's backup dancer last week, saying he "has absolutely no business being a pro on Dancing with the Stars." According to Maks, Jan has "zero foundation technique, quality, understanding of the partnership," nor a single clue about "what foxtrot is supposed to look like." Because of all that, the ballroom champ feels his partner, Jen Affleck, had a "major disadvantage" this season. Damn.