Liverpool had their biggest transfer window for years in 2023, as they brought in four new players. So far, all four have proven their worth. Things have been a little trickier for Ryan Gravenberch perhaps, but Wataru Endo, Alexis Mac Allister and Dominik Szoboszlai have all been brilliant. The early weeks belonged to Szoboszlai, who wowed fans with his all-action early displays. Moving into winter, it was Endo who stood out, proving just about everybody wrong in the process. But in recent times, it has been Mac Allister who has really shown his quality. The Argentine has excelled in an unfami…