Carlton have more AFL injury concerns over another star player with veteran midfielder Marc Murphy going down at training.

The former Blues skipper was taken off the training ground on a cart after suffering an ankle injury during a drill on Monday morning.

The club has confirmed to AAP that Murphy has been sent off for scans.

If the injury is serious it would be a major blow to Carlton’s plans heading into their first full-season under coach David Teague.

Young key forward Charlie Curnow still isn’t back into full training after he underwent surgery in November on a fractured right patella bone.

Big man Harry McKay is working his way back from a groin issue, while defender Caleb Marchbank will be eased back into training after missing the final seven games of last season with a neck injury.

Carlton co-captain Sam Docherty is on track to play against reigning premiers Richmond in round one after missing two seasons due to back-to-back anterior cruciate ligament tears.