Who was the last player to score a penalty kick for liverpool f.c before mohamed salah achieved it in 2017/18 season?

Salah started scoring in the 15th, while Coutinho scored his first goal of the season with an impressive free kick in the 23rd, putting Liverpool up 0-2.Mohamed Salah is a forward who plays for Liverpool and represents the Egyptian national team. He is considered to be one of the best players in the world and is known for his speed, dribbling and precision in front of goal. Since joining Liverpool, Salah has won a UEFA Champions League title and a Premier League title, helping the club to its sixth European Cup and first national crown in 30 years, respectively.