Former Liverpool striker Peter Crouch was impressed by one of his old club’s players against Arsenal today. The Reds took on the Gunners in a top-of-the-table clash at Anfield on Saturday night. It was a game that started at a terrific pace, with an early Arsenal goal cancelled out by a Mohamed Salah equaliser. Salah’s goal was set-up beautifully by a booming Trent Alexander-Arnold pass. It was the best moment of a very good half from Liverpool’s right-back, and it was heralded by Crouch who took to X to praise Alexander-Arnold. “Trent with an exhibition of passing 1st half !!” wrote the 42-ye…