Mirra Andreeva, 16, refuses to shake umpire's hand after loss to Madison Keys

ARGUING THE POINT: Mirra Andreeva argues with umpire Julie Kjendlie after being given a point penalty. Pic: John Walton/PA

Teenager Mirra Andreeva was given a point penalty for throwing her racket and refused to shake the umpire’s hand in a fourth-round loss to Madison Keys at Wimbledon.

The 16-year-old Russian, who has been a crowd favourite on her debut at the All England Club, looked set to become the youngest player since Anna Kournikova in 1997 to make the quarter-finals here when she led by a set and 4-1.