In the whole mess of the Manti Te'o 'dead girlfriend' hoax...a fullback from the Arizona Cardinals, Reagan Maui'a, claims that Lennay Kekua IS real and he met her while doing charity work in American Samoa in June of 2011 with other players including Troy Polamalu, story at ESPN

From the ESPN story: 

"This was before her and Manti. I don't think Manti was even in the picture, but she and I became good friends. We would talk off and on, just checking up on each other kind of thing. I am close to her family. When she was going through the loss of her father, I was -- I offered a comforting shoulder and just someone to bounce her emotions off. That was just from meeting her in Samoa. Mauia said he met her at an "after-party" for all of the athletes involved in the camp."

THEN.....there was this tweet from the @LennayKay Twitter account....

Then, Maui'a, tweeted that Troy had no involvement....the tweet was retweeted by Troy's official Twitter account