Rosas Jr. withdraws from Noche UFC co-main as Font fights Martinez

Raul Rosas Jr. has withdrawn from the co-main event at Noche UFC on Sept. 13 in San Antonio, the 20-year-old bantamweight confirmed on Instagram, saying a training accident left him with a rib injury that will not heal in time for the fight against Rob Font. The bout had been billed as a significant step up for Rosas, who was set to face a top-10 veteran on a card celebrating Mexican Independence Day.

Rosas said the injury occurred while he was trying to escape a body triangle in training. "I tried to push through it but didn't heal and won't fully heal in time," he wrote, adding that he has begun working back into normal training and hopes to fight twice more this year. The promotion has not released an official statement on Rosas's withdrawal. In the days after his announcement, the UFC rebooked Font to face David Martinez, a rising prospect who will move into the co-main slot.

Initial reports on replacement plans were inconsistent. Early accounts suggested the promotion had slotted a lightweight matchup between Alexander Hernandez and Diego Ferreira onto the card, but those pairings were subsequently superseded by the Font-Martinez matchup, which people familiar with the...