Heavyweight champion Jon Jones was injured while preparing for his UFC 295 title defense against former titleholder Stipe Miocic.  "Bones" tore his pectoral muscle while training last October.  

Jones underwent surgery days later and has done physical therapy for months.  It's been six months since the surgery and Jones has returned to the gym.  

“First day back in the gym since my injury, felt amazing,” Jones wrote on Instagram. “And so it began.”

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Jones is almost universally considered the mixed martial arts GOAT.  He's the youngest UFC champion in history.  He's a two-time light heavyweight champion with 11 title defense.  He held the 205-pound championship for a record 1,501 days.  He's the current heavyweight titleholder and has the most wins in UFC title bouts.   

Jones vacated the light heavyweight title in 2020 following his UFC 247 decision win over Dominick Reyes.  Three years later, he returned to the octagon to fight for the heavyweight championship.  

Jones faced top contender at the time, Ciryl Gane in the UFC 285 main event in March 2023.  The fight lasted two minutes.  Jones submitted Gane via guillotine choke and became a two-division UFC champion adding to his legacy.   

The Jones and Miocic bout is expected to be rebooked at some point later this year.  It will be Jones' first heavyweight title defense.