Australian Open: Osaka, Barty & Nadal in night session - radio & text

Rafael Nadal alieviates the danger, stepping it up when he needs to as he fends off the break point and then rushes to the net to hold!

Rafael Nadal opts for a drop shot with more spin than a midday slot at your local gym, but Karen Khachanov reads it.

Rafael Nadal has just gone a little flat for a moment.

Rafael Nadal rattles a backhand into the tape and that allows Karen Khachanov to get on the scoreboard, holding in a fraction of the time it took to come through his last service game.

Karen Khachanov does at least get on the board - winning two points, which is twice as many on the Spaniard's serve as in the rest of the match - but he can't stop Rafael Nadal grinding to a hold as he backs up that mammoth break a moment ago.

And Rafael Nadal gets the break with a deep return.

Brilliant from Rafael Nadal, a dipping backhand that just creeps over the net and Karen Khachanov cannot pick it up.

Karen Khachanov responds with an ace but again Rafael Nadal wins the next point.

A shake of the fist from Karen Khachanov as he once again edges to advantage, but the Russian just can't see it out!

Frustration for Karen Khachanov, who edges in front but then double faults

Huge, huge hitting from Karen Khachanov and it forces Rafael Nadal to go wide

A grunt in celebration from Karen Khachanov after a feisty service winner, but Rafael Nadal has the edge when engaging the Russian in a rally and brings up two early break points

*Nadal 5-3 Khachanov

A wayward forehand on the run from Karen Khachanov and Rafael Nadal backs it up with a steamy serve to turn this game around to 30-15

Karen Khachanov hasn't won a single point on Rafael Nadal's serve yet, he'll have to win at least four to stop the Spaniard taking the opening set