Enzo Fernández and Sandro Tonali had big-money summer moves, but can they hold a candle to past greats? Perhaps the only thing you really need to know about the modern midfield role is that Enzo Maresca reckons that Marc Guéhi can play it better than Mateo Kovacic. Guéhi, in reality a centre-back, started the season in midfield for Manchester City, ahead of Kovacic, the now-departed Nico González, and Matheus Nunes. In this context City’s purchase of Enzo Fernández for a club record £125m can b…