Diaz and Nunez have both moved to new clubs, with Diaz joining Bayern Munich and Nunez joining Al-Hilal. The combined fee for their transfers is reportedly £106 million.
Liverpool have been linked with a move for Newcastle striker Alexander Isak, and it's understood that they have made a bid of £120 million for the player. However, this offer has been rejected by Newcastle.
Van Dijk spoke about the need for a new forward after the team's loss to Crystal Palace in the Community Shield. "After losing Nunez and Diaz, we need another forward," he said.