Motorex KTM’s Kirk Gibbs has confirmed he’ll sit out the remainder of the 2013 season with extensive injuries sustained at the Mount Gambier round of Australian Supercross.

Gibbs crashed out of the South Australian main event and was originally diagnosed with a rib fructure, however further scans have since uncovered damage to his vertebra.

Last weekend Gibbs attempted to ride at Phillip Island’s fourth and fifth rounds, but was declared unfit following just three laps of practice on Saturday morning.

“Went to the doctors today, I have two broken ribs and a 30 percent decrease in my T3 vertebrae so it’s been crushed a bit,” Gibbs announced in a post on Facebook today.

“So that’s probably why I’ve been in a bit of pain and couldn’t ride at Phillip island. Looks like a longer off season for me to get healthy an come out swinging for 2014.”

Prior to his injury, Gibbs was one of the revelations of the season both outdoors and in supercross, contesting his first full season on the 450 SX-F.