Answer
Rafael Benitez was the coach who signed Reina for Liverpool. Benitez was appointed as the manager of Liverpool in 2004 and he immediately set about strengthening the squad. Reina was one of his first signings, arriving from Villarreal in 2005. He has since gone on to become one of the best goalkeepers in the world and has helped Liverpool to win the Champions League, FA Cup and League Cup.