MELBOURNE, AUSTRALIA - JULY 02: Patrick Cripps of the Blues marks the ball during the 2016 AFL Round 15 match between the Carlton Blues and the Collingwood Magpies at the Melbourne Cricket Ground on July 2, 2016 in Melbourne, Australia. (Photo by Adam Trafford/AFL Media/Getty Images)

Carlton star Patrick Cripps will miss the next three months of pre-season training due to a stress fracture in his back.

Cripps, who has been back training with his teammates for the past month, felt discomfort in his back on Wednesday.

Scans later revealed the extent of the injury, which will keep him grounded for up to 12 weeks.

“Unfortunately this pre-season setback means Patrick will be out of action for up to 12 weeks,” Carlton Head of Football Andrew McKay said.

“While the news is disappointing, the positive is we have diagnosed the condition early, minimising his time on the sidelines.

“Given his professionalism and determination, we are confident Patrick will be ready for the 2017 pre-season competition.”