John McEnroe gives his immediate reaction to Novak Djokovic's semi final retirement.

Andre Agassi and Steffi Graf's daughter Jaz has once again shown her enthusiasm for the University of Nevada, Las Vegas' (UNLV) men's tennis team.

World tennis superstar Novak Djokovic is best known for his talent on the court, but at home he's just "dad" to two adorable kids.