Miami Open

Reigning Olympic champion Puig, who is from Puerto Rico, came back from a set down to win 0-6 6-4 6-4.

The Swiss great beat his Spanish rival for a third time this season and fourth in succession, needing just two breaks of serve and 94 minutes to claim his 91st career title and with it, a 26th Masters crown thanks to a 6-3 6-4 victory in Florida.

Federer also cements his place at number one in the year's race for ranking points and will rise to number four in the world after adding Miami to his titles at Indian Wells and the Australian Open already this season.

The British number one was the better player throughout and held her nerves when she needed to most, breaking Wozniacki to seal the victory with a magnificent lob at the end of a thrilling rally.

Victory gives Konta the most significant trophy of her career. The Premier Mandatory event falls just under the Grand Slams in the season's events and the 1000 points on offer mean the 25-year-old will rise to number seven in Monday's updated world ranking list.

Konta was aged just six when Williams first won this tournament 19 years ago and has cited the seven-time Grand Slam winner as one of her heroes.

But she showed no room for sentiment as her gruelling 6-4 7-5 semi-final win on Thursday night delivered a third successive victory against the American.

It sets up a showpiece meeting with Caroline Wozniacki and gives the British No 1 a chance to win her second title at this level - a 'Premier Mandatory'.

Kerber, the top seed, cruised past Japanese qualifier Risa Ozaki 6-2 6-2 while Czech second seed Pliskova beat 15th-seeded compatriot Barbora Strycova 6-1 6-4.

Kerber was barely tested in her 62-minute match during which she displayed a great arsenal of shots and was all over her opponents' serve.

She moves on to face the winner of Monday's round-of-16 clash between Venus Williams and Russian seventh seed Svetlana Kuznetsova.

Federer was given a thorough examination in his first meeting with the 19-year-old but despite Tiafoe's admirable effort, the Swiss great proved too strong to book his third-round spot and a possible meeting with Juan Martin del Potro if the Argentine can see off Robin Haase

Despite the gulf in experience between the players, Tiafoe underlined his status as one of the brightest talents in the game with a spirited display full of huge potential and winners off both wings.

The No 10 seed was pushed all the way by her Belarussian opponent who finally succumbed 6-2 6-7 (5/7) 6-4 after two hours and 40 minutes.

However, it all appeared to be plain sailing for Britain's No 1 when she wrapped up the opening set in just 33 minutes, thanks to two breaks of serve.

In the second, Konta looked in control once again as she moved into a 4-2 lead - and had a point for 5-2 - before the 23-year-old from Minsk staged a brave recovery.