Carlton youngster Jarrod Pickett has suffered a ruptured patella tendon, and will undergo surgery on Friday after a training injury on Thursday morning.

The Blues won't put a timeframe on his return, and will instead wait until after surgery before releasing more information.

However, the recovery time is usually around 3-6 months, meaning Pickett will face a delayed start to the season.

โ€œOur whole Club feels for Jarrod who has worked so hard to get himself back into our AFL program over the last month,โ€ Carlton Head of Football Brad Lloyd told the club's website.

โ€œWhile the news is disappointing, as a Club we will be there with Jarrod through every stage of his recovery and ensure he gets back out on the field in navy blue.

โ€œOur playing group is very resilient and take every challenge in their stride. This challenge now presents an opportunity for a younger player to step up and seize their opportunity.โ€