UFC featherweight champion Jose Aldo has been forced out of a scheduled encounter with Chad Mendes. The two were expected to square off at UFC 176 in August in a rematch of a 2012 fight won by Aldo.

Following news of the injury to Aldo, FOX Sports' Mike Chiappeta reported that Aldo suffered an injury to his labrum and a herniated cervical disc after falling and hitting his head and shoulder on the floor during a training session.

The UFC 176 card is set for August 2 from Los Angeles and the Staples Center. The lineup currently boasts a middleweight contest between Gegard Mousasi and Ronaldo "Jacare" Souza, along with Gray Maynard vs. Fabricio Camoes and Shayna Baszler vs. Bethe Correia. A new main event is expected to be announced soon by the UFC.

Aldo (24-1) has fought just six times since coming over from the WEC in 2011, including a February victory over Ricardo Lamas. Mendes (16-1) has won six in a row since the loss to Aldo in Brazil.

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