The promotion announced on a Friday that an injury has forced Gustafsson to withdraw from his June 20 fight against Glover Teixeira in Berlin. As a result, newly-crowned 115-pound champion Joanna Jedrzejczyk will defend her title against Jessica Penne in the new main event.
It's unclear at this time the extent of Gustafsson's injury, as well as how long he'll be out for. What's also unclear is whether Teixeira will remain on the card.
The Polish-born Jedrzejczyk (9-0) won the strawweight title at UFC 185 in March when she defeated Carla Esparza via second-round TKO.