Australian Open day four: Kenin’s exit, Fognini’s feud and Nadal’s heckler

A spectator is escorted from the Rod Laver Arena. Picture: Rick Rycroft/AP

Rafael Nadal dealt with American qualifier Michael Mmoh and a heckler to set up a third-round meeting with Britain’s Cameron Norrie, who won a late-night four-setter.

Ashleigh Barty is safely through but defending champion Sofia Kenin bowed out.