On his own website - rafabenitez.com - Torres is widely quoted praising his fellow Spaniard for the impact he had on his career.
"Rafa has been the most important coach in my career," it quotes Torres as saying.
"It wasn't easy for me to leave Atletico, come to England and play in a much faster game that is more dynamic and physical than La Liga.
"Rafa has been the only one who knew how to help me improve. He taught me a lot and thanks to him I matured as a professional, without a shadow of a doubt.
"He is a coach who is very meticulous and who can identify small but very important details that no-one else sees to enable you to score. I worked with him a lot individually and I think we saw the benefit of this on the pitch.
"Rafa taught me to demand the maximum of myself. You can't stop after scoring 20 goals and say, 'Done it, there you are'.
"After scoring 20 goals for Benitez's team he comes to you in training and pushes you more every day, all week.
"There are days when you think 'Good God, this bloke doesn't let me breathe'."