The defence coach is returning to New Zealand for personal reasons
Leinster have confirmed defence coach Kurt McQuilkin will return to his native New Zealand ahead of the new season.
McQuilkin, a former player and captain of the province, cited personal reasons for his decision to return to New Zealand.
"This is very sad news for Kurt and his family and our priority is supporting Kurt in his decision as best we can," said head coach Leo Cullen.
"He will be with us for a few more weeks but after that he will head back home with our very best wishes in very trying circumstances and with the thanks of everyone at Leinster Rugby for his stellar contribution over the last 12 months.
"The process of replacing Kurt has already begun but right now our focus is on Kurt and ensuring that his move back home is as seamless as possible."
He was part of the backroom staff during Michael Cheika's reign and helped bring an inaugural Heineken Cup to the province back in 2009.