North Melbourne ruckman Tristan Xerri will be sidelined for at least the next month after bone stress was detected in his foot this week.

The foot injury comes after a solid start to the season for the 23-year-old who has played every game in the number one ruck position.

"It’s unfortunate timing for Tristan. He’s done a power of work to cement himself in the team," North Melbourne’s General Manager of Football Performance Dan McPherson said.

"The positive here is the foot issue has been detected early and there is no sign of a fracture.

"Tristan will work closely with our medical team on his rehab program, and we’re hopeful he will be available for selection in a month’s time."

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