Serena reaches 22 unbeaten in Madrid

World number one Serena Williams has extended her unbeaten record this season to 22 matches with a routine 6-4 6-0 win over Sloane Stephens to move into the third round of the Madrid Open.

Williams hasn’t been beaten in the Spanish capital since 2010 and was never troubled by her fellow American as she booked her place in the last 16 in under an hour on court on Monday.

The 19-time Grand Slam champion will face either Belarussian Victoria Azarenka or Australian Ajla Tomljanovic in the third round on Wednesday.

There will also be a battle of former US Open champions in the last 16 as Australian Samantha Stosur and Russian Svetlana Kuznetsova face off.

Kuznetsova on Monday battled past home favourite Garbine Muguruza 6-3 5-7 7-5 after over two-and-a-half hours on court, whilst Stosur eased past Estonia’s Kaia Kanepi 6-3 6-2.

Denmark’s Caroline Wozniacki set up a third round meeting with Agnieszka Radwanska as her promising start to the clay court season continued with a 7-5 6-0 win over American qualifier Christina McHale.

The world number five reached the final in Stuttgart last month and had too much for McHale after battling back from 4-2 down in the first set.

Radwanska had an even more comfortable route into the last 16 as she needed just over an hour to dispose of Australian Casey Dellacqua 6-2 6-1.

The Pole is playing her first tournament since ending an ill-fated four-month spell with 18-time Grand Slam champion Martina Navratilova as her coach.

Wozniacki leads the head-to-head between the pair 7-4, but this will be their first meeting on outdoor clay.

Big-serving Americans John Isner and Sam Querrey booked their places in the second round of the men’s event.

Isner overcame France’s Adrian Mannarino 7-6 (7/2) 6-4 whilst Querrey edged past Australian qualifier Thanasi Kokkinakis 6-4 6-7 (5/7) 6-3.

Rafael Nadal’s conquerer at the Barcelona Open last month, Fabio Fognini, eased into round two 6-2 6-3 over Santiago Giraldo.

Meanwhile, 11th seed Feliciano Lopez needed three sets to beat Germany’s Benjamin Becker 7-5 3-6 6-4.

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