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OTRC: Ryan Phillippe was in delivery room when Alexis Knapp had baby?

Ryan Phillippe talks to OnTheRedCarpet.com at the Hollywood premiere 'Lincoln Lawyer' on March 11.

Ryan Phillippe was in the delivery room when actress Alexis Knapp gave birth to a baby that may be his, report says.

The 36-year-old actor and Knapp, 21, have not commented on the matter. She gave birth to a baby girl named Kai on Friday, People magazine reported on July 7, 2011.

The two dated in the summer of 2010. In March 2011, the magazine quoted a source close to the matter as saying: "Alexis has told friends that the child is Ryan's." Ryan is aware of the situation [and] totally prepared to take responsibility should the child be his."

Phillippe, known for movies such as "Cruel Intentions" and recently, "The Lincoln Lawyer," has two children with ex-wife Reese Witherspoon - daughter Ava, 11, and son Deacon, 7.

Knapp, who has appeared in films such as "Percy Jackson & the Olympians: The Lightning Thief" in 2010 and recently shot the movie "So Undercover" with Miley Cyrus, has no known older children.

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