MIAMI GARDENS, Fla.  — Roger Federer will face a hectic few days if he’s going to win another Miami Open.

He’s off to a good start.

Federer is through to the quarterfinals, having little trouble on the way to a 6-4, 6-2 victory over 13th-seeded Daniil Medvedev on Wednesday — needing only 61 minutes to prevail in a match where he committed a mere eight unforced errors. The match was supposed to be Tuesday and was pushed back a day because of rain.

So now, to win what would be his fourth Miami title, Federer will have to prevail four times in a five-day span. Next up for the No. 4 seed is a quarterfinal Thursday against No. 6 seed Kevin Anderson — a match between the two highest seeds left on the men’s side, and the biggest test yet for Anderson since his return from an elbow issue.

“I’m feeling really good,” Federer said. “Today’s match, I can be really happy with so I hope it’s going to give me some confidence for tomorrow.”

Federer and Medvedev split the first eight games, and then things turned quickly. Federer broke Medvedev for a 5-4 lead in the first set, fought off three break points to close out the set in the next game, and got another break to open the second set. He cruised home from there.

“When you want to go deep in tournaments, sometimes you need those 15 minutes that go your way and you’re able to pull away with the score too,” Federer said of the break and then the rally from 0-40 down to serve out the opening set. “Margins are super-slim and you need a bit of help sometimes from your opponent.”

Federer leads the head-to-head against Anderson 5-1, the loss coming last year in the Wimbledon quarterfinals — Anderson winning 13-11 in the fifth set.