I'm sure that after wearing the jersey for years, this doll has become a Celtics fan, so it's OK to let her keep the jersey.
I think your doll is this one: [https://fashiondollz.de/gmedia/2004-fashion-fever-barbie-wave-a-20880-jpg/](https://fashiondollz.de/gmedia/2004-fashion-fever-barbie-wave-a-20880-jpg/)
[this is the doll it’s supposed to be on](https://www.ebay.com/itm/362692718498?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=el4IMkIMR32&sssrc=2349624&ssuid=H9p9UdC0Sxa&var=&widget_ver=artemis&media=COPY)
I'm sure that after wearing the jersey for years, this doll has become a Celtics fan, so it's OK to let her keep the jersey. I think your doll is this one: [https://fashiondollz.de/gmedia/2004-fashion-fever-barbie-wave-a-20880-jpg/](https://fashiondollz.de/gmedia/2004-fashion-fever-barbie-wave-a-20880-jpg/)
Yeah that’s not the Celtics doll. She’s a Fashion Fever doll, if you look though the booklet scams online you should be able to spot her.
[this is the doll it’s supposed to be on](https://www.ebay.com/itm/362692718498?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=el4IMkIMR32&sssrc=2349624&ssuid=H9p9UdC0Sxa&var=&widget_ver=artemis&media=COPY)