U.S. Open R4 previews and predictions: Federer vs. Goffin, de Minaur vs. Dimitrov
Roger Federer will be back in U.S. Open action on Sunday afternoon, when he faces familiar foe David Goffin. That all-seeded matchup is joined on the fourth-round schedule by an all-unseeded battle between Alex de Minaur and Grigor Dimitrov. […]