Federer wary of Medvedev after Miami victory

The 20-time Grand Slam champion has won 14 and lost two matches on the ATP Tour this season.

Federer, however, stylishly weathered the storm to seal the win - the 52nd of his career in Miami - to move into the quarter-finals and a match with either American Reilly Opelka or Daniil Medvedev. He was anything but overawed by facing Federer and it was no surprise to see him wrap up the first set and leave the world number five with plenty of work to do.

Roger Federer knew he had things going his way at the Miami Open when he hit three shots off his frame during a wild 17-stroke exchange and still won the point because Filip Krajinovic dumped a half volley into the net.

Federer was knocked out in the second round a year ago, but avoided an upset loss against Albot, the Moldovan who has been one of the form players in 2019.

Krajinovic struggled with injury past year as problems with his ankle, left foot and hand restricted him to just seven tournaments in the first seven months of 2018.

Federer broke back immediately and fended off a break point to lead 6-5, before avoiding a tie-break by fizzing a searing cross-court forehand victor past the Serbian.

Eighth-seeded Greek Stefanos Tsitsipas downed Argentinian Leonardo Mayer 6-4, 6-4, 20th-seeded Canadian Denis Shapovalov dispatched Russian qualifier Andrey Rublev 6-3, 7-6 (5), and 28th-seeded American Frances Tiafoe rallied past Spaniard David Ferrer 5-7, 6-3, 6-3.

The second set wasn't as competitive, Federer easing home and finishing with 35 winners compared to the Serbian's 18.

Grigor Dimitrov was beaten by world number 77 Jordan Thompson in straight sets.

He will meet Joao Sousa in the third round after the Portuguese 29-year-old defeated Steve Johnson 7-6 (6) 6-4.

"When I saw I can win easy games with my serve, it gave me great confidence", she added.

Up next for Kontaveit in the last eight will be Taiwan's Hsieh Su-wei, who took down former World No.1 Caroline Wozniacki 6-3, 6-7 (0), 6-2 two days after beating the current occupier of that position, Naomi Osaka.

The 27-year-old Halep has now won her last four meetings against Williams and, after her 6-3, 6-3 victory, she declared she was "really happy with her game".

Kvitova plays Australian Ashleigh Barty for a place in the semi-finals.

  • Angelo Rivera