Milan, the birthplace of Dolce and Gabbana and Alfa Romeo, is a quintessentially Italian city. But in recent years, if you attended the storied Derby della Madonnina, the match where the city’s soccer rivals face off, one thing might have stood out: each team has had Chinese investors. In 2016, the Chinese appliance giant Suning bought a majority stake in Inter Milan — one of the most storied names in Italian soccer — for close to $300 million. A year later, Chinese investors spent more