British number one Johanna Konta defeats Simona Halep to set up a Miami Open semi-final against Venus Williams.
Five-time Grand Slam champion Maria Sharapova says she has got her "day job back" as she prepares to return to tennis.
Alexander Zverev comes from a set down to knock out top seed Stan Wawrinka in a surprise result at the Miami Open.
Andy Murray is left out of Britain's Davis Cup quarter-final team to face France as he recovers from an elbow injury.
Audio & Video
World number one Serena Williams challenges two strangers to an impromptu match during an evening walk, asking: "Can I play the winner?"
Tom Fordyce sees the world's ninth and 17th-ranked players defy age and injury to produce an Australian Open contest to number among the greatest ever.
How to get into Tennis
How to get into tennis - a sport on the up in the UK. Find your nearest court and learn the basics with our guide
What's on BBC Sport this week
This week's sport on the BBC includes horse racing from Wetherby, the Merseyside derby and the Boat Races.
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