India, Sept. 7 -- Internet sleuths are working overtime to identify the woman now known as 'Phillies Karen', following a viral confrontation during Friday's Philadelphia Phillies vs. Miami Marlins game at LoanDepot Park in Miami.

During the matchup, Phillies outfielder Harrison Bader launched a home run into the left-field stands. A man in Phillies gear retrieved the ball from the ground and handed it to his young son, Lincoln, as a birthday gift.

However, another fan, a woman also wearing Phillies attire, confronted the father, insisting the ball was "in her hands first." She demanded he give it to her.

Video footage shows the woman, now dubbed 'Phillies Karen', arguing aggressively, grabbing the father's arm, and pressuring him to ha...