- Now, with the civil trial over Gwyneth Paltrow's ski accident. The retired optometrist accusing Paltrow of slamming into him on the slope is expected to take the stand after her testimony last week. Kayna Whitworth here with the story. Good morning, Kayna. - Hey, George. Good morning to you. And this has been a contentious one here. A Utah skier suing her for $300,000, after he says the accident caused permanent brain damage. Paltrow countersuing for legal fees and a single symbolic dollar. - Because Mr. Sanderson categorically hit me on that ski slope. And that is the truth. KAYNA WHITWORTH: Hollywood heavy-hitter Gwyneth Paltrow back in court telling her side of the story in a civil lawsuit, alleging she violently collided with the skier that caused permanent brain injury during a 2016 family vacation in Park City, Utah. - I fell on his body. He fell on the ground. And so it was kind of like a spoon on the ground. I couldn't see in the back of my head. LAWYER: Sure. - But I felt a body press against my back. KAYNA WHITWORTH: Paltrow alleging it wasn't her that crashed into the then-69-year-old Terry Sanderson, but in fact him smashing into her, insisting she was skiing cautiously because she was with her children at the time. GWYNETH PALTROW: I didn't engage in risky behavior. I wouldn't with my children there or without my children there. I was skiing and looking downhill, as you do. And I was skied directly into by Mr. Sanderson. I said, you skied directly into my f-ing back. And he said, oh, sorry. Sorry. I'm sorry. KAYNA WHITWORTH: The Goop founder then revealing she even became confused and actually thought someone was trying to accost her. - I was skiing and two skis came between my skis, forcing my legs apart. And then there was a body pressing against me. I thought, am I-- is this a practical joke? Is someone like doing something perverted? LAWYER: And you're not saying to the jury that this was in any way, shape, or form a sexual assault? - I am not saying that. I'm just saying what went through my mind for a split-second. KAYNA WHITWORTH: A stark contrast to what Sanderson's legal team is arguing. They say, Paltrow recklessly crashed into him, resulting in four broken ribs and a concussion that led to permanent brain damage. Emotions running high, as Sanderson's family took the stand. - As he used to be able to multitask and do all sorts of complicated tasks. And now, he has a hard time just following through, one step at a time. KAYNA WHITWORTH: And tensions between the two legal teams at a boiling point. - She's lied under oath a number of times and I want to be able to show the jury that-- - Your Honor, that's slanderous and I want it withdrawn this moment. - And now, today, we do expect to hear more from Terry Sanderson, the man at the center of all of this. And as the trial moves forward, we can also expect Paltrow's husband and children to testify in her defense. And you guys, we might see Paltrow on the stand again, as well. She testified as a plaintiff witness last week so she could testify in her own defense. Either way, we have decidedly different stories here. - It's gonna be wrapping up soon. Hey, I hear we have you for the whole week? I'm - Here all week. ROBIN ROBERTS: Off the road. - I'm so-- ROBIN ROBERTS: No parka. - --happy to be here. [LAUGHTER] Exactly. Thanks for having me, guys. - Absolutely, Kayna.