Thanks. The big win for the 11-year-old philadelphia girl who wants to play football with the boys. The archbishop of philadelphia has reversed the decision to keep their catholic youth league boys... See More
Thanks. The big win for the 11-year-old philadelphia girl who wants to play football with the boys. The archbishop of philadelphia has reversed the decision to keep their catholic youth league boys only after a huge online fight for her. John schriffen has the story. Reporter: This is the moment karl line pla realized she finally scored the big win. Yay! Reporter: The 11-year-old found out she could play football again after the archbishop of philadelphia said she couldn't be anall-boys team. The part I love about football so much is that my friends, they're all like my brothers now and they're all my te teammates and we just have such a great time on that team i can't imaginnot being on the team anymore. Get him. Reporter: For the past two seasons she played in the catholic youth organization football team where you can see the sixth grader had no problem fitting in. When sidelined by a technicality pla tightened her chin strap and pushed to get back out will. I don't want to be treated like I'm not one of them but how they would treat a boy. Reporter: She gained national attention appearing on "ellen" even starting a petition on change.Org that got more than 100,000 signatures. Go. Reporter: Then thursday the league reversed its decision saying "the archdiocese will allow for co-ed participation in cyo football effective in the 2013 season." To people who supported me i want to say thank you because every single signature on that petition, every single person that said I support caroline really helped. Reporter: And she has this message for other young girls. You should be able to play and now you can so you should play if you want to. Reporter: For "good morning america," john schriffen, abc news, new york. Good luck to caroline. That's great.
This transcript has been automatically generated and may not be 100% accurate.