Dancing with the Stars pro Gleb Savchenko has unleashed an astonishing attack on ex-girlfriend Brooks Nader, branding her the "worst" partner he's ever had, Wonderwall.com can reveal. The dancer opened up about their brief relationship while chatting with fellow contestant Dakota Mortensen on the April 8 episode of YouTube's Unwell Winter Games. 'She chipped my tooth' Gleb Savchenko cruelly taunted Brooks Nader on a YouTube show. By: MEGA During his tirade, Savchenko claimed the Sports Illustrated Swimsuit model chipped his tooth. "When I dated her, it was pretty bad," he said.