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His departure rescued Roma. His arrival revitalized Liverpool. When the two clubs meet over two legs in the Champions League semifinals, the matches will also serve as a celebration of Mohamed Salah, a player who means more to Roma and Liverpool than they could ever have imagined. The Egypt winger left Roma for Liverpool in June last year for 42 million euros ($50 million). In an off- season when the Premier League spent record sums and Neymar would soon go on to change the sport’s financial landscape by joining Paris Saint-Germain for 222 million euros, Salah’s transfer wasn’t unnoticed but was hardly agenda-setting. It has proved a significant piece of business. For Roma, it helped balance the club’s books, erasing a big chunk of its deficit at a time. Selling Salah was a wrench. He combined for 26 goals (scored 15, set up 11) in Serie A in the final season of his 18 months in the Italian capital, second only to Jose Callejon of Napoli. He had quickly become a fans’ favourite. The then Roma coach, Luciano Spalletti, had helped develop Salah’s all-around game so he was more than just a speedy winger, but an efficient and creative one, too. As it turned out, $50 million was a bargain.