January's transfer window spending in Europe was led by one team: Chelsea. The Blues splashed over €300 million on eight players including Enzo Fernandez (€121m), Mykhailo Mudryk (€70m), Benoit Badiashile €37m) and Noni Madueke (€35m), which blew the rest of the clubs out of the water.
Nobody else could compete with that level of investment -- in fact, Chelsea ended up spending more in January than the combined total of all clubs in the Bundesliga, LaLiga, Serie A and Ligue 1 -- but which clubs and players did well during the window and which did not?