Liverpool have a brilliant roster of goalkeepers right now. Alisson Becker is arguably the best goalkeeper in the world, Caoimhin Kelleher is an incredible number two, while Giorgi Mamardashvili is a prospect for the future. However, Liverpool haven’t always had it easy on the goalkeeping front. Once upon a time, the Reds had Simon Mignolet and Loris Karius as their first-choice goalkeepers. Speaking on the LFC Transfer Room Podcast, former Liverpool goalkeeper coach, John Achterberg,has been discussing Liverpool’s previous goalkeeping issues, and he’s revealed that the Reds actually looked to…