By Andrew Gastelum The former AC Milan star has signed a two-year contract with Valencia and most recently coached at Napoli in 2020–2021. View the original article to see embedded media. Valencia has appointed AC Milan great Gennaro Gattuso as its next manager despite heavy pushback from its fanbase. Gattuso, 44, joins the Spanish side after recent managerial stints with AC Milan and Napoli. Last season after being linked with Tottenham, he signed on to become Fiorentina’s manager only to leave the club less than a month later. But his history of controversial comments has stirred up a resist…