A rematch between Renzo Gracie and Matt Hughes is off for ADCC 2015.

Gracie and Hughes, who fought each other at UFC 112 in 2010, were set to grapple at the upcoming edition of the Abu Dhabi Combat Club Submission Wrestling World Championship on Aug. 29 and 30 in Sao Paulo, Brazil, but MMAFighting.com has learned that the match is cancelled with Gracie injured.

According to ADCC officials, Gracie will have to undergo surgery to fix a knee injury. The promotion expects to announce a new special match later this week.

PRIDE veteran Ze Mario Sperry, who defeated Renzo Gracie in 2011 and Fabio Gurgel in 2013, is set to meet American Top Team head coach Ricardo Liborio in 2015, while ADCC 2013 absolute champion Roberto "Cyborg" Abreu takes on multiple-time ADCC champion Andre Galvao.