Liverpool’s pre-season properly got underway on Friday night with a 1-0 win over Real Betis. The Reds put in a professional performance against the Spanish outfit as we got to see for the first time what the Merseyside club will look like under Arne Slot. Liverpool were comfortable against Betis, but they weren’t exactly exhilarating. Mohamed Salah put in an interesting performance against the Seville-based outfit, playing a role that saw him drift wider rather than working as an inside forward as he so often did under Jurgen Klopp. Speaking on the Official Liverpool Podcast, John Barnes has b…