Croatia’s Ivo Karlovic reacts during his men’s singles first-round match against Spain’s Feliciano Lopez on day three of the French Open  in Paris. Photograph: Christophe Archambault/AFP/Getty Images

Forty-year-old Ivo Karlovic continued to defy the sands of time at the French Open. By beating Feliciano Lopez 7-6 (4) 7-5 6-7 (7) 7-5 in the opening (...)

Novak Djokovic stretches to hit a backhand return during his match against    Gilles Muller  at  the Australian Open in  Melbourne. Photograph:  Lukas Coch/EPA

Novak Djokovic ensured seven of the top eight seeds reached the quarter-finals of the Australian Open after overcoming Luxembourg’s Gilles Muller in M(...)

Novak Djokovic is through to the last 16 of the Australian Open after he beat Fernando Verdasco in straight sets. (Photograph: Mark Kolbe/Getty Images)

Not even the distraction of a spectator proposing to his girlfriend could prevent top seed Novak Djokovic from easing into the last 16 of the Australi(...)

Novak Djokovic  chases down a shot during a second round match in the Arthur Ashe Stadium. Barton Silverman/The New York Times

World number one Novak Djokovic barely worked up a good sweat on another sizzling day at the US Open as he strolled past Paul-Henri Mathieu 6-1 6-3 6(...)

David Ferrer of Spain shakes hands with his compatriot Rafael Nadal after winning their quarter-final match at the Monte Carlo Masters. Photograph: Eric Gaillard/Reuters

Rafael Nadal’s 30-match winning streak ended on Friday when the world number one was upset 7-6(1) 6-4 by fellow Spaniard David Ferrer in the M(...)

 Andy Murray runs down the ball during his men’s singles first round match against Michael Llodra at the  US Open. Photograph:  Clive Brunskill/Getty Images

Andy Murray was a man in a hurry as he began the defence of his US Open title with a speedy victory over Michael Llodra under the lights on Arthur As(...)