Next month’s UFC on FOX 20 co-headliner has been officially scrapped. After the recent scratch of light heavyweight  Anthony Johnson (21-5 MMA, 12-5 UFC), the promotion has pulled fellow ex-title challenger Glover Teixeira (25-4 MMA, 8-2 UFC) from the card. The UFC initially sought a replacement opponent for the Brazilian slugger, but now seeks to rebook the fight at a later date, the promotion today announced. It was also revealed Johnson was removed “to tend to a serious family matter.” UFC on FOX 20 takes place July 23 at Chicago’s United Center. The card airs on FOX following early prelims on UFC Fight Pass, though the bout order hasn’t been finalized. With the removal of Johnson vs.