He has been in charge since 2015.
Leinster head coach Leo Cullen has signed new two-year deal with the province.
The former Leinster captain has been in charge since 2015 and had previously only signed one-year rolling deals.
He will work alongside another senior coach with the Blues looking to replace Stuart Lancaster who will depart this summer.
Cullen has led Leinster to a Champions Cup in 2018 and to four PRO14/URC titles during his tenure.

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