Kristian Woolf has been given his notice by the Tonga National Rugby League board.
Woolf is favourite to be named new St Helens boss and is currently acting as interim boss at Newcastle Knights.
He has been coach of the Mate Ma’a Tonga since 2014 and they revolutionised the international game at the 2017 World Cup as they reached the semi-finals.
In a statement released by Tonga NRL, it read: “The board of directors unanimously decided to give notice to Kristian Woolf that his tenure as head coach comes to an end on September 5.
“The board has not taken this decision lightly, however, in the best interests of the Tonga NRL, the board has made that decision with a view to our future.
“With the results not being favourable to Tonga in 2018 and 2019, the board after consultation with interested third parties, decided that action had to be taken in view of building towards the World Cup in 2021.”