Former Dancing with the Stars contestant Hope Solo makes several damning allegations about her old partner Maks Chmerkovskiy in her memoir, Solo: A Memoir of Hope.

Inside the book, Hope claims that Maks was physically abusive, hitting her in the stomach and slapping her in the face during rehearsals.

“He was often nasty,” she writes, “swearing at me and being harshly critical … I didn’t like being treated like that, but I could take it.”

“He manhandled me in rehearsals from the start, pushing me, whacking my stomach, bending my arms roughly,” she continues. “I thought that was just how it went – how dancers worked with each other. I was tough. I could take it.”

“But it kept getting worse,” the Olympian adds. “One day, Maks was trying to put me in a certain position and hit my stomach so hard with his open palm that I had a red handprint there for the rest of the day.”

One day during a rehearsal, Hope writes that Maks was so angry with her that he slapped her. “He wanted my head in a specific position. To achieve that, he slapped me across the face. Hard.” She adds that “he was extremely apologetic.”

These allegations are not sitting well with Maks who responded to them on Twitter.