Every summer, supporters—like managers—will analyse their team's squad and ponder which positions need strengthening the most during the transfer window.
For years now, Liverpool supporters have yearned for a new left-back and some sort of holding/defensive midfielder. Arguably, they've been the positions of need for six years now, since Javier Mascherano departed for Barcelona.
During that time, many left-backs have been acquired—from Paul Konchesky to Alberto Moreno—but none have convinced. Left-back has been a problem position at Anfield for two decades now, with only John Arne Riise ever establishing himself as a solid option but one who still had defensive weaknesses.