MIAMI GARDENS, Fla. (AP) — A special guest crashed Portugal coach Roberto Martínez’s news conference Friday: Grammy winner Dua Lipa. Her sound, anyway. Speakers inside the interview room at the stadium started blaring some of Lipa’s songs for a few minutes in the middle of Martínez’s availability session. It wasn’t totally clear why — some wires got crossed, evidently, during a rehearsal happening inside the stadium — but nobody seemed to mind that it happened. Martinez even swayed a little in