Reoccurring back issues have forced Alexander Gustafsson to pull out of his fight against Glover Teixeira. The bout was scheduled to take place on June 20 at the O2 World Arena in Berlin, Germany. No timetable was given on Gustafsson’s return or if he will need any type of surgery. Both Gustafsson and Teixeira are former title challengers and were looking to get back on the winning side of things.

Gustafsson (16-3) was looking to bounce back from a devastating loss to Anthony “Rumble” Johnson back in January. The loss took place in Gustafsson’s home country of Sweden. Not only was it the first time he had suffered a loss via a knockout, it also ended Gustafsson’s hopes of getting a rematch with Jon Jones for the light heavyweight championship.

Glover Teixeira (22-4) is currently riding a two-fight losing streak after going over eight years without losing a bout. During his undefeated streak Teixeira went a remarkable 20-0, including going 5-0 in the UFC before earning a shot at Jon Jones and his light heavyweight championship. Teixeira would go on to lose the title bout by a unanimous decision and then would drop his next bout to Phil Davis also by a unanimous decision after being out grappled for the entire fight.

As of this writing the UFC has not announced a new opponent for Teixeira or if he will be pulled from the card completely.