Serena not ready for final curtain

Serena Williams is closing in on her 35th birthday and has just experienced back-to-back Grand Slam final losses for the first time.

But the American superstar and world No 1 is not ready to be dethroned any time soon.

Williams' latest attempt to equal Steffi Graf's Open era record of 22Grand Slam titles was thwarted on Saturday by Spain's Garbine Muguruza in the French Open final.