Dallas Mavericks owner Mark Cuban said he doesn't "have any doubts" about the growing number of sexual assault accusations against Donald Trump because he knows of two other women who had similar experiences.

Cuban mentioned the two women, who he says haven't come forward, Tuesday night in a phone interview with CNN's Don Lemon.

He declined to give details because he said it's all second- or third-hand information.

But Cuban said their accounts are "absolutely" true and support the allegations of the women who have come forward against the Republican nominee since a 2005 video surfaced of Trump bragging about kissing women without permission and grabbing their genitals. The Washington Post published the video Oct. 7.

Trump has denied all assault allegations.

Cuban's claims came soon after he taunted his fellow billionaire about attending the presidential debate Wednesday night in a tweet, saying he "can't wait to give a big hug" to his "bestie."

Watch the portion of the interview related to the claims against Trump or scroll below to read a portion of it.

CNN host Don Lemon: "Have you ever heard of anything like these women coming forward or him being untoward?"

Mark Cuban: "Yes."

Lemon: "You have?"

Cuban: "Yes, and I know one, and it just didn't happen recently. My friend reminded me and it was from 2000 and she — you know, I don't expect her to come forward. I wouldn't recommend she come forward. I know somebody else from two years ago that won't come forward. So, you know, it's not anything that caught me by surprise."

Lemon: "So again, this is you saying, this is not CNN's reporting, but tell us what you can since you know him."

Cuban: "I mean, that's what I can tell you. I can tell you my friend that was dating this one woman, ya know, just reminded me of the story they told me right after it happened — put it all down in details, and obviously I remembered it and I had another person who contacted me after the race started and told me a story. But I don't want to just go into it since it's all second- and third-hand, other than to say that it's absolutely, factually true so I don't have any doubts that what we're hearing is true.

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