Nuno, who saw the forward notch 44 times for Wolves, is thrilled to see the move working out.
“We are very happy for Diogo," said Nuno.
“He is enjoying his football, enjoying his momentum, he is doing amazing for Liverpool. I think Klopp is really happy with him.
"For us, we worked together for four seasons and when a player goes and succeeds it makes us happy.
“In the case of Diogo it's not a surprise. Diogo loves the game, he is committed, he lives for football, he plays and watches all the games.
"I am really happy for Diogo and I hope he continues and enjoys it game by game. It's a joy to see him smile."