Liverpool face a difficult trip to Brentford in the early kick-off on Saturday afternoon. Jurgen Klopp looks set to be without a couple of key players in Trent Alexander-Arnold and Dominik Szoboszlai. Alexander-Arnold was forced off in the 3-1 win at Burnley last weekend after a recurrence of the knee injury which had kept him sidelined for a few weeks. As for Szoboszlai, he remains sidelined with a hamstring injury after a brief return earlier in February. Despite two notable absentees, Mohamed Salah has been spotted back in training this week ahead of Saturday’s clash against the Bees. And w…