Miami Open 2018: Raonic ousted by del Potro for second consecutive tournament

Miami Open 2018: Raonic ousted by del Potro for second consecutive tournament

The Canadian was defeated despite not facing a single break point in the first two sets, before the contest took a freaky twist at the start of the decider when both players were broken twice in a row.

Acapulco and Indian Wells champion Juan Martín del Potro extended his red-hot form to reach the Miami Open quarter-finals, while second seed Marin Cilic bowed out.

The hard-hitting Argentine, who faces American John Isner next on Friday, will also be helped by the absence of Federer at Miami, who lost his world No. 1 ranking after his shock opening match defeat against Thanasi Kokkinakis last week. The two players remained on serve until the match-deciding tiebreak, which again saw del Potro jump out to an early advantage.

"I am exhausted now, but at least I have a day off to prepare for Friday. I know I'm in the semi-finals and I can't wait to get back on this court".

Del Potro came into the match owning the hottest streak on the ATP tour with 20 match wins this year.

In the other quarter-final, Russian top seeds Ekaterina Makarova and Elena Vesnina pulled off an emotional win, sporting black ribbons to commemorate the deaths of at least 64 people - 41 of them children - at a Siberian shopping mall on Sunday in their 6-2, 6-4 victory over Lyudmyla Kichenok of Ukraine and Alla Kudryavtseva of Russia.

It was similarly neck and neck with both players hitting powerfully from the baseline.

Del Potro raced to a 5-0 lead and sent his fans wild by sending the match into a decider. He won four of the first five points and eventually sealed the 7-3 win with a break of Raonic's serve.

Del Potro finally held for 3-2 and Raonic was left to serve at 5-6 to keep his hopes alive and so it went into a final tie-break.

Isner will, however, be a hard nut to crack with the American recovering from an early season slump to play some of the best tennis of his career.

Awaiting him is home favourite John Isner as the big-serving American thumped South Korea's Hyeon Chung 6-1 6-4.

The 14th-seeded Isner cruised through the remainder of the 25 minute opener, in which he fired seven of his 13 aces. The way the ball bounces, the court isn't too fast, so it's great for me.

"I played extremely well".

"I love to play in matches like this", Del Potro said after the match.