Rangers' Gibson, Royals' Keller combine for one of the worst Opening Day pitching matchups in MLB history | CBS Sports Headlines Rangers' Gibson, Royals' Keller combine for one of the worst Opening Day pitching matchups in MLB history We warned you that it was the worst pitching matchup of the … Continue reading Rangers' Gibson, Royals' Keller combine for one of the worst Opening Day pitching matchups in MLB history