Key Carlton pair Matthew Kreuzer and Caleb Marchbank are expected to be available for selection for the Blues when they take on Sydney at Marvel Stadium in round three.

Carlton coach Brendan Bolton revealed the two had come โ€œreally closeโ€ to selection for the sideโ€™s round two Saturday twilight clash with Port Adelaide.

Veteran ruckman Kreuzer underwent a minor procedure to his knee in late January, while tall defender Marchbank has been battling a back complaint.

โ€œWe just want a little bit more training into them. Their injuries are both pretty good now so theyโ€™re training,โ€ Bolton told reporters at Melbourne Airport on Friday before his sideโ€™s flight to Adelaide.

โ€œ(Director of high performance) Andrew Russellโ€™s saying another week, so Iโ€™m pretty confident theyโ€™ll play next week.โ€

Andrew Phillips will continue with ruck responsibilities in round two in Kreuzerโ€™s absence, while Jacob Weitering, Lachie Plowman and Liam Jones will hold the fort down back.