Djokovic marches into Miami quarters as Ruud exits

Novak Djokovic in action at Indian Wells. —AFP/FileMIAMI GARDENS: Novak Djokovic cruised into the quarter-finals of the Miami Open on Tuesday with a 6-2, 6-2 win over Italian Lorenzo Musetti in one hour 22 minutes.Musetti, the 15th seed from Tuscany, got off to a flying start to take a 2-0…