Johnson to meet Medvedev in Winston-Salem final
Venus Williams will take on compatriot Sloane Stephens in one semi-final before her fellow Americans Madison Keys battles it out with CoCo Vandeweghe in the other in all-American semi-final in the women's singles at the US Open.
Top seed Victoria Azarenka charged ominously into the fourth round of the Indian Wells WTA tournament on Sunday while third-seeded Petra Kvitova made an unexpected early exit.
Ana Ivanovic beat Petra Kvitova 6-3, 7-5 on Sunday to keep alive Serbia's hopes of winning their debut Fed Cup title.
Holder Maria Sharapova ended the encouraging run of Venus Williams to reach the semi-finals of the Italian Open on Friday, but Serena Williams enjoyed an easy passage through to the last four.
Novak Djokovic was back on top form as he brushed aside rising Australian talent Bernard Tomic 6-3, 6-3 to reach the third round of the Rome Masters on Tuesday.
Defending champion Petra Kvitova was upset by qualifier and Czech compatriot Lucie Hradecka 6-4, 6-3 in the second round of the Madrid Open on Wednesday.
World No 4 Del Potro is still sidelined with a right knee injury sustained in Shanghai last month.
World No 1 Victoria Azarenka enjoyed another walk in the park against Agnieszka Radwanska on Saturday, beating the Pole for the fifth time this year to reach the Stuttgart Grand Prix final.
Petra Kvitova put defending champions the Czech Republic into the Fed Cup final with a 6-4, 7-6 win over Italy's Francesca Schiavone on Sunday.
Nobody feels that Caroline Wozniacki is the rightful World No 1 and the Dane owes her top ranking to a flawed WTA system, according to Martina Navratilova.
Serena Williams has extended her lead in the WTA rankings after her fourth consecutive Grand Slam title at Wimbledon, with the World No 1 now having more than twice as many points as her closest competitor Maria Sharapova.
Will winning Wimbledon be a life-changing experience for the Czech Republic's Petra Kvitova? Not if she can help it.
Top seed Caroline Wozniacki will play 107th-ranked local Anastasia Rodionova in the first round of the Australian Open when she begins her bid for a maiden Grand Slam title.
Former world number one Serena Williams looked sharp in her return to the hardcourts after a week-long break, soundly defeating Daria Gavrilova 6-1, 6-2 on Monday to advance to the second round of the Cincinnati Masters.
World number one Victoria Azarenka stretched her unbeaten run to 24 matches this year while Venus Williams ousted Wimbledon champion Petra Kvitova at the Sony Ericsson Open in Miami on Friday.
Maria Sharapova's mix of grit and power were enough to see off American teenager Sofia Kenin 7-5, 6-2 in the third round of the US Open on Friday.
Murray was made to fight for two hours and 52 minute
China's Li Na showed plenty of character as she fought back to beat German Angelique Kerber 1-6, 6-3, 6-1 and win the Cincinnati Open title on Sunday.
World Number one Simona Halep and Japan's Naomi Osaka are among the players nominated for the Women's Tennis Association (WTA) Player of the Year award.
Maria Sharapova stood, looked at the players' box, slammed both of her fists down in celebration and let out an almighty roar of "Come on!"
Fourth seed Maria Sharapova overcame a second set rally by Petra Kvitova to advance to her third Australian Open final with a 6-2, 3-6, 6-4 victory on Thursday. She will now meet third seed Victoria Azarenka in the final on Saturday after the Belarusian earlier beat 2011 champion Kim Clijsters 6-4, 1-6, 6-3.
Images from day nine of the Australian Open 2012 Grand Slam tennis tournament in Melbourne, on Tuesday.
There's nowhere to hide when you hit the worst shot of a tennis Grand Slam.
Petra Kvitova and Tomas Berdych produced some impeccable tennis to give the Czech Republic the Hopman Cup with a 2-0 win over France in the final on Saturday.
Former U.S. Open champion Juan Martin del Potro stepped up his comeback from another wrist surgery by toppling top seed Fabio Fognini at the Sydney International on Wednesday.
Petra Kvitova produced a majestic performance to end Eugenie Bouchard's hopes of becoming the first Canadian to win a Grand Slam title with a 6-3, 6-0 win in the Wimbledon final on Saturday.
The stars were out in full force at the Kensington Roof Gardens, in London, on Thursday night.
IMAGES from the matches played at the Miami Masters on Sunday
Check out the best looks from the Vanity Fair party.
The Cincinnati Open claimed two more high-profile victims on Thursday with Grand Slam champions Li Na and Petra Kvitova crashing out, while Russian pair Maria Sharapova and Vera Zvonareva crunched their opponents en route to the quarter-finals.
Wonderland's latest Summer issue is making news for all the wrong reasons.
Wimbledon champion Petra Kvitova was voted WTA's Player of the Year on Monday following a season in which she claimed her debut Grand Slam title, steered the Czech Republic to Fed Cup glory and shot up 32 places in the world rankings.
Kveta Peschke and Lucie Hradecka beat Maria Kirilenko and Elena Vesnina 6-4, 6-2 in the decisive doubles to give the Czech Republic a 3-2 win over Russia in the Fed Cup final on Sunday, clinching the country's first title as an independent nation.
Anastasia Pavlyuchenkova overpowered Lucie Safarova 6-2, 6-4 in the second reverse singles to pull Russia level with the Czech Republic at 2-2 in their Fed Cup final on Sunday.
A weary Caroline Wozniacki was sent packing from the WTA Championships after losing 6-4, 6-2 to powerful Czech Petra Kvitova in her final round-robin match on Thursday.
The Czech Republic was enjoying a hat-trick of Wimbledon triumphs on Sunday when Iveta Benesova teamed up with Austrian Juergen Melzer to capture the mixed doubles title with a 6-3, 6-2 win over Mahesh Bhupathi and Elena Vesnina.
World No 1 Serena Williams's 27-match unbeaten run ended with a 6-2, 6-3 defeat by Petra Kvitova in the Madrid Open.
Softly-spoken 21-year-old Czech Petra Kvitova celebrated her Wimbledon singles title with a shy smile on Saturday, a stark contrast to the destructive tennis she employed to destroy former champion Maria Sharapova on Centre Court.
Eighth seed Petra Kvitova kept her nerve to outgun and outplay favourite Maria Sharapova and win the Wimbledon singles title for the first time with a convincing 6-3, 6-4 victory on Saturday.