Liverpool have had some brilliant players pass through the club over the past 15 years. In fairness, it’s probable that the very best of them are still at the club. Mohamed Salah has a shout to be Liverpool’s greatest ever player, while Alisson Becker and Virgil van Dijk aren’t far behind either. Aside from that princely trio though, the Reds have sold on some quite terrific talent since WhoScored started collecting their data in 2009/10. And according to a post on X from the football statistics site today, one of those flogged by Liverpool has the highest average rating since records began. W…